Squeegee Sex happens while having sex in the missionary position. Nano-seconds before ejaculation, the male, punches the female in the stomach causing her to flinch and contract uncontrollably, creating the tightest vagina known to man. See also “Donkey Punch.”
"Dude, Last night I squeegee sexed Renae!
"NICE, How was it?"
"TIGHT! Any tighter and I think it would have ripped my cock off!"