that chick has a nice c.s.m. or i bet that girl gives good head because of her big c.s.m.
"cock sucking muscle  [area of skin underneath the chin/jaw] [commonly mistaken for "double chin"] [adams apple]"
"that chick has a nice c.s.m. or i bet that girl gives good head because of her big c.s.m." What is the definition of "c.s.m."?