Definitions by Jack Pemberton

jammy cunt

jammy cunt means a very lucky person, can be used sarcastically.

oooooooooooo oski, you jammy cunt!!

a poocrumb is where one has a poo and there is remanence of poo left on the hair around the anus. Can also be used as an insult.

Gary wiped his arse and there was poocrumb left on there!
or You poocrumb!