Definition given to 'fine ass bitches' that can be considered for intercourse. The unsuspecting male will usually run up behind the cumable female and begin dry humping in order to proove she is indeed cumable. If so then the male will begin intercourse, by some means, and then proceed to cum in her. Used to grade bitches from a far, by accessing whether they could make you orgasm.
Some variations include a gradign system in which males question whether they can make the female cum.
Check out that fine ass bitch, she's beeping 100 on my cumable radar.
Do you think shes cumable?
Who cares, I just pissed myself