A semenator is extreme good at ejaculating a lot more semen than the
average human. Basically, anyone that you know that puts out enough to fill a
glass is definitely a semenator. Can also be used in relation to liquids of mass amounts, see examples.
1. My
ex-boyfriend was such a semenator.
2. Dude, that guy's sprinkler system puts out so much
water, I'm not even sure why he hasn't won the semenator award yet.
3. I wish I was a semenator so I could have
kids.