A youngster's prank originating in the playground's of Northern Ireland.It involves sticking a finger up your own anus then stealthily creeping up behind an unsuspecting individual and wiping the shitty finger across his/her top lip.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

A term used to berate someone. It alludes to that person’s affinity for licking and/or kissing bare, unwashed assholes.