The side of the end of a hammer which isn't the side of the end of a hammer which you use to hammer a nail in, but in fact the side of the end of a hammer which you would use to pull a nail out.
I've just extracted a nail using my hammer's pleen.
He had just nailed his girlfriend's best friend - and there was no Pleen which could undo the work of that hammer (see shade).
A person, typically a cute girl, who is a talented artist but coincidentally has a physiological condition which often precludes them engaging their abilities.
Girl: Truth or dare?
Guy: Truth.
Girl: Are you circumcised?
Guy: Unfortunately, no. I have an unsheared peen...
Girl: That’s gross, and I will therefore not give you head.
Guy: Fuck.
When a girl is in love with another man's penis, until the point where it becomes so obvious and disgusting, for she does it in public. A peener feiner tags along his friends, nagging and teasing them. The peener feiner is usually not liked back.
Guy 1: why the hell is Janice following us around?
Guy 2: probably because she's peen feining Sam