1 definition by iamnotarapist

cumper

a person who can't do anything right. particularly directed at the utter "mongs" of society. they sit below the likes of fuckboys and tosspots but slightly above the well known "roadman"

Horace: Sorry mum I forgot my bag at school.
Martha: For fucks sake Horace, you fucking cumper

by iamnotarapist January 27, 2016