1.To produce more semen than can fit inside the woman to be inseminated.

2.Also slang for "entirely owned."
1."Sorry Sheela, I didn't mean to overcum."

2. Will - WTF?
Jake - You've been overcum!
by O.J. Simpson April 23, 2004
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used in online games to mean "utterly owned"
That was the hardest raping I've ever seen! Seriously, you've just been overcum!
by Sam April 28, 2004
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