Typical red freckled sun damaged chest. Not all moms have mom chest, but the ones who do are always moms.

refering to the hair growing on your mothers chest

-Often used in place of your mom.
-Derived from the motion picture Mean Girls.

when you shoot your garbage all over some milf's titties and stomach

The best comeback ever

The end-all be-all phrase that has the power to end any verbal argument. Once spoken, your opponent will be so much in awe that he will quietly back away.