Ring nudger

One of those annoying boyfriends who 'accidentally' slips out during a spot of doggy. He then pretends he's having trouble finding the right spot to put it back in and nudges the back door repeatedly until you either slam it closed or grudgingly acquiesce.

I like Frank/Dave/Reginald, if only he wasn't such a persistent ring nudger...

duffshit

Something that's doubly crap - like a crap present bought from a crap shop so it's not even worth taking back to exchange.

My Gran bought me this duffshit light sabre from Poundland for Christmas