adjective, loop·i·er, loop·i·est.

full of loops.
  1. eccentric; crazy; dotty.
  2. befuddled or confused, especially due to intoxication.
Scot. crafty; sly.

Origin of loopy

First recorded in 1815–25; loop1 + -y1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for loopy

Contemporary Examples of loopy

Historical Examples of loopy

  • Sometimes this path is loopy, and its little nods correspond to nutation.

  • "You don't have to hold him," called Captain Burgee, dismounting from Loopy the mate.

    Sugar Plum

    Reginald Bretnor

  • Under it was written in her black, loopy handwriting, "My Hero and my Love."

    Shadows of Flames

    Amelie Rives

  • I should use very thick worsted and make very big, loopy, spready stitches.

British Dictionary definitions for loopy


adjective loopier or loopiest

full of loops; curly or twisted
informal slightly mad, crazy, or stupid
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 loopy

"full of loops," 1856, from loop + -y (2). Slang sense "crazy" is attested from 1923. Earlier figurative sense was "cunning, deceitful" (by 1825).

Online Etymology Dictionary, © 2010 Douglas Harper