earworm
nounUK /ˈɪə.wɜːm/
US /ˈɪr.wɝːm/
A song that gets stuck in your head and you keep hearing it again and again.
That catchy jingle is a real earworm that I can't stop humming.
RELATED WORDS
OTHER MEANINGS
2. A small caterpillar-like larva that damages the ears of corn plants.
The farmer checked the corn for earworms before harvest.
3. A type of moth whose larvae feed on corn ears.
The earworm moth lays its eggs on young corn plants.
4. Any tune that involuntarily repeats in a person's mind.
She had an earworm from the radio ad all afternoon.