A situation during sexual intercourse when a man ejaculates explosively in between the butt cheeks of his partner. He then would vibrates the butt cheeks of his partner while his semen drips down their crack.
Chris - Listen baby, im not trying to have some candle light dinner over wine tonight. Im just trying to shack the cheeks.
by Shhtevenn June 9, 2016
Get the Shack the cheeksmug.