Squinting Llama
When you phone up a sexline in a phone box, and leave the phone off the hook while 2 people, members of opposite or same sex, have sex in the telephone box. Sign of best squinting llama's is when the windows steam up.
Jonny: Mate, I squinting llama-ed this babe last night. We got so hot that the windows steamed up. It was like an erotic dream I once had.