Cock sucking fart

When you are 69ing with a girl and fart in her face

Too calm and then I let out a cock sucking fart and then she left

Self cock block

A self (cock block) is when you are in a sexual situation but your nervousness prevents you from gaining an erection.

Todd: You hook up with that chick we met at that concert yet?
Kyle: I was gonna but I was self cock blocked cause she was (a score)