earworm

1
[eer-wurm]

earworm

2
[eer-wurm]Informal.
noun
  1. a tune or part of a song that repeats in one’s mind.
verb (used with object)
  1. to work (itself or its way) into a person’s mind: The Pepsi jingles have earwormed their way into my head.

Origin of earworm

2
1980–85; loan translation of German Ohrwurm ‘catchy tune, earwig’
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ear worm

earworm

noun
  1. 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