Cum is a slang word for semen.
Ugh, someone left a cum stain on this sheet. How disgusting!
That weird sticky white substance that comes out of yo cock when you get a little bit too excited.
he cummed last night.
Cum is a slang term for substances that exit a person's genitalia during an Orgasm.
Verb : The action of ejaculating. (Cumming)
Noun : Semen, Vaginal Fluids
V : "don't cum in me, I'm not on birth control"
J : "Uhh, too late."
C : "I cummed so hard to the thought of that boy at the party. "
cum is the liquid that is from the testicles. It is the most important liquid in producing an offsprinf.
The shit that that comes out yo dick when you jack off or have sex