Bitch slap
The sound that a woman's butt cheeks make when she's riding a big cock. Note that not all women may be capable of producing bitch slaps.
Person 1: Hey, did you hear the tenants last night? Person 2: Yeah I heard them using the microwave. Person 1: Oh god, I thought bobby was abusing his wife. Person 2: You must have heard some bitch slaps.
By TheSharpie