Chalking the Nose Cue

The act of being so into a 69, your nose enters her rectum, causing a brown rub on your nose tip...

"Dude, Christine had me so into 69ing with her last night, I didn't realize how much I got into her; I chalked my nose cue..."
"Mark, that is REALLY Chalking the Nose Cue}, it's still there! WASH YOUR FACE!!!"