when a woman is thick and her butt cheeks including muscle and fat and can move them towards and away from each other (kind resembling a clapping motion.)
I love it when you got your ass clappin' for me (with handsclapping in the background)
An ass-clap is the proper term for a the following action.
You see your best friend. You proceed to high-five your best friend. As your palms connect, continue on to slap your friend on the ass cheek. Proceed to bask in the awkward awesomeness.
Great for making a pass at your straight/gay teammates after a score.
Also the ultimate show of complete adjustment to your friend and the ultimate hand-shake/high-five no one dare copy.
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!