a tune or part of a song that repeats in one’s mind.
verb (used with object)
to work (itself or its way) into a person’s mind: The Pepsi jingles have earwormed their way into my head.
Origin of earworm2
1980–85; loan translation of German Ohrwurm ‘catchy tune, earwig’
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
informal an irritatingly catchy tune
Word Origin for earworm
C20: from German Ohrwurm earwig
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