Cock Chalk
this is the white residue left on your clothes (usually inside your jeans) from 1-3 day old jackoff semen that you forgot to clean and now has become a chalk-like powder that kinda flakes off when you scratch it with your nail, wondering what it is...
Ernie, this cock chalk all over your clothes is out of control!!!! Please son, stop jacking off so much.
cock chalk
What you call it when you write on something with your cock after you bone some chick on her period.
after i did lauren last night i marked her up with some cock chalk.
cock chalk
the residue left around the outer edges of the lips after giving felatio
nicole was giving shawn a blow job and had some cock chalk left on the edges of her mouth