The amount of cum a given person can hold in their mouth (or any given orifice) at one time.
Her mouth has a very good cumpacity. I blew two loads in there!
ayon kay Ninja Amber ika-26 ng Agosto, 2011
The amount of cum in which one can take
She is a slut, her cumpacity level is very high
ayon kay Mrspencer ika-13 ng Nobyembre, 2015