When someone has boobs that you want to cum on. See also titfuck
My God, Sandra is a Cumchest.
by melovescheese July 24, 2009
A Cum Chest is when a girl blows a guy, and proceeds to spit the load into a jar or bucket and saves it. No one knows why.
Oh my god, I just gave some dude a blow job and spit his chowder into my cum chest. I've got at least 20 dudes marinating in there!
by MediaOffline76 October 15, 2010