The Chuck
"The Chuck" refers to when a man spits into his hand during sexs and uses the saliva to lubricate a woman's ass for anal sex.
Example:
Guy #1: "Hey man, see that fine ass broad over there?"
Guy #2: "Yeah, what about her?"
Guy #1: "She'd get 'The Chuck'"
Guy #1: "Hey man, see that fine ass broad over there?"
Guy #2: "Yeah, what about her?"
Guy #1: "She'd get 'The Chuck'"