noun Informal.

the switching of a customer's long-distance telephone company or other public utility without his or her authorization.

Origin of slamming

1990–95; slam1 + -ing1



verb (used with or without object), slammed, slam·ming.

to shut with force and noise: to slam the door.
to dash, strike, knock, thrust, throw, slap down, etc., with violent and noisy impact: He slammed his books upon the table.
Informal. to criticize harshly; attack verbally: He slammed my taste mercilessly.


a violent and noisy closing, dashing, or impact.
the noise so made.
Usually the slam. Slang. slammer(def 2).
Informal. a harsh criticism; verbal attack: I am sick of your slams.
  1. Also called poetry slam.a competitive, usually boisterous poetry reading.
  2. a usually competitive performance involving multiple performers with short acts: puppet slams; a tap dance slam.

Origin of slam

1650–60; perhaps < Scandinavian; compare Icelandic, Norwegian, Swedish slamra to slam
Related formsun·slammed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for slamming

smash, bat, hit, knock, beat, fling, slap, dash, swat, bang, batter, hurl, strike, crash, blast, belt, shut, pound, thwack, cudgel

Examples from the Web for slamming

Contemporary Examples of slamming

Historical Examples of slamming

British Dictionary definitions for slamming



verb slams, slamming or slammed

to cause (a door or window) to close noisily and with force or (of a door, etc) to close in this way
(tr) to throw (something) down noisily and violently
(tr) slang to criticize harshly
(intr; usually foll by into or out of) informal to go (into or out of a room, etc) in violent haste or anger
(tr) to strike with violent force
(tr) informal to defeat easily


the act or noise of slamming
slang harsh criticism or abuse

Word Origin for slam

C17: of Scandinavian origin; compare Old Norse slamra, Norwegian slemma, Swedish dialect slämma




  1. the winning of all (grand slam) or all but one (little slam or small slam) of the 13 tricks at bridge or whist
  2. the bid to do so in bridgeSee grand slam, little slam
an old card game

Word Origin for slam

C17: of uncertain origin




a poetry contest in which entrants compete with each other by reciting their work and are awarded points by the audience

Word Origin for slam

C20: origin unknown
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

Word Origin and History for slamming



1670s, "a severe blow," probably from a Scandinavian source (cf. Norwegian slamre, Swedish slemma "to slam, bang") of imitative origin. Meaning "a violent closing of a door" is from 1817. Meaning "an insult, put-down" is from 1884. Slam-bang recorded by 1806 (also slap-bang, 1785). Slam-dunk is from 1976; early use often in reference to Julius Erving. Slam-dance is attested by 1987 (slam by itself in this sense is recorded from 1983).



"a winning of all tricks in a card game," 1660s, earlier the name of a card game (also called ruff), 1620s, used especially in whist, of obscure origin. Grand slam in bridge first recorded 1892; earlier in related card games from 1814; figurative sense of "complete success" is attested from 1920; in baseball sense from 1935.



1690s, "to beat, slap;" 1775 as "to shut with force," from slam (n.1). Meaning "throw or push with force" is from 1870. Meaning "say uncomplimentary things about" is from 1916. Related: Slammed; slamming.

Online Etymology Dictionary, © 2010 Douglas Harper