Idioms

Origin of off

orig. stressed variant of of1

Usage note

The phrasal preposition off of is old in English, going back to the 16th century. Although usage guides reject it as redundant, recommending off without of, the phrase is widespread in speech, including that of the educated: Let's watch as the presidential candidates come off of the rostrum and down into the audience. Off of is rare in edited writing except to give the flavor of speech.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for on-off

British Dictionary definitions for on-off (1 of 2)

on-off


adjective

(of an electrical switch, button, etc) having an `on' position and an `off' position
existing at times and not at others; discontinuousan on-off relationship

British Dictionary definitions for on-off (2 of 2)

Word Origin for off

originally variant of of; fully distinguished from it in the 17th century

usage

In standard English, off is not followed by of: he stepped off (not off of) the platform
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with on-off

off


In addition to the idioms beginning with off

  • off again, on again
  • off and on
  • off and running
  • off balance
  • off base
  • off duty
  • off guard
  • off of
  • off one's chest, get
  • off one's feed
  • off one's guard
  • off one's head
  • off one's high horse
  • off one's rocker
  • off someone's back
  • off someone's feet
  • off someone's hands
  • off the air
  • off the beam
  • off the beaten track
  • off the cuff
  • off the deep end
  • off the ground
  • off the handle
  • off the hook
  • off the mark
  • off the rack
  • off the rails
  • off the record
  • off the shelf
  • off the top of one's head
  • off the track
  • off the wagon
  • off the wall

also see:

  • back off
  • bad off
  • beat off
  • beat the pants off
  • beg off
  • be off
  • better off
  • bite off more than one can chew
  • bite someone's head off
  • blast off
  • blow off
  • blow off steam
  • blow the lid off
  • bore to death (the pants off)
  • branch off
  • break off
  • bring off
  • browned off
  • brush off
  • bug off
  • bump off
  • burn off
  • buy off
  • buzz off
  • call off
  • cap it all (off)
  • carry off
  • cart off
  • cast off
  • change off
  • charge off
  • check off
  • cheesed off
  • chip off the old block
  • choke off
  • clear out (off)
  • come off
  • come off it
  • cool down (off)
  • cool off
  • count off
  • cry off
  • cut off
  • cut off one's nose
  • dash off
  • day off
  • die off
  • doze off
  • drop off
  • dust off
  • ease off
  • easy as pie (rolling off a log)
  • fall away (off)
  • fat of the land, live off the
  • fight off
  • fire off
  • first off
  • fish or cut bait (shit or get off)
  • fly off the handle
  • fob off
  • fuck off
  • get off
  • get off on
  • get off one's tail
  • get off the dime
  • get off the ground
  • give off
  • give the shirt off one's back
  • go off
  • go off the deep end
  • goof off
  • hands off
  • hats off to
  • haul off
  • have it (off)
  • head off
  • high off the hog
  • hit it off
  • hold off
  • hot off the press
  • jerk off
  • jumping-off place
  • keep off
  • kick off
  • kill off
  • kiss off
  • knock it off
  • knock off
  • knock someone's block off
  • knock the socks off
  • laugh off
  • lay off
  • lead off
  • leave off
  • let off
  • level off
  • lift off
  • like a chicken with its head cut off
  • like water off a duck's back
  • load off one's mind
  • log in (off)
  • make off
  • mouth off
  • nod off
  • no skin off one's nose
  • on (off) camera
  • on (off) duty
  • on the (off) chance
  • pack off
  • pair off
  • palm off
  • pants off
  • pass off
  • pay off
  • peel off
  • pick off
  • piss off
  • play off
  • polish off
  • pull off
  • push off
  • put off
  • put someone off
  • quick off the mark
  • rake off
  • rattle off
  • right away (off)
  • rip off
  • round off
  • rub off
  • run away (off)
  • run off
  • run off at the mouth
  • run off with
  • rush off one's feet
  • seal off
  • see someone off
  • sell off
  • send off
  • set off
  • shake off
  • shoot off one's mouth
  • show off
  • shrug off
  • sign off
  • slack off
  • slip out (off)
  • sound off
  • spin off
  • split one's sides (laugh one's head off)
  • sponge on (off)
  • square off
  • squeeze off
  • stand off
  • stave off
  • stop off
  • straight off
  • swear off
  • switch on (off)
  • tail off
  • take off
  • take off after
  • take the edge off
  • take up where one left off
  • talk someone's arm off
  • taper off
  • tear off
  • tee off
  • tell off
  • tell someone where to get off
  • throw off
  • trade off
  • wipe off the map

Also see underon.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.