A term (verb) that describes the physical action a (sometimes inexperienced) sexual partner displays in which the person shows signs of sheer surprise, confusion, and eventual satisfaction from a rather unusual and/or unfamiliar sexual act. Largely a squatt or squatting is particularly more acceptable and receptive when it's being done from a female standpoint. However, a guy can squatt too, but that's just weird hearing about it unless a circle of chick perverts start talking about their foray with a man from the night before, but even then that just sounds hoaky.
"I put a finger in her butt while i was going down her last night and she squatted STUPID-STYLE. She couldn't believe how much she was enjoying it"
"I made this one chick squatt by biting her neck and whispering in her ear whilst giving it to her from behind, and she went NUTS!"