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3.
This is when you have gonorrhea in your ass.
She can only give you butt clap with her strap-on if she licks it first!
by Moose Hole March 24, 2009
 
1.
(v) verb
Definition: When someone farts and produces a clapping sound from his or her butt. Also can be used when someone is on the toilet and makes the same sound.
Wow John, your farting sounded like a clap! It's a butt clap!
by Monyrith March 05, 2006
 
2.
The noise the ass-cheeks make when doing anal sex.
"When Ronny shoved the tube in, Steves buttclap was louder than ever."
by Timoteo Becerra August 01, 2006