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1. knockered
Not actually slang for anything sexual...but it sounds like it should be, shouldn't it?

Bastardization of knackered. Sounds like knocked up.
1: I hear you were up all night last night...
2: Yeah, I was getting knockered by my girl

3: "I was knockered, then I was right knackered"

4: Knockered isn't sexual slang for anything, but it SHOULD be.

5: I'm already knackered enough as it is.
6: Knackered? Surely you mean KNOCKERED!