One who emits ridiculously large amounts of semen after sufficient stimulation to his manhood. Does not mean he has a large didgeridoo or is immune to the feared premature ejaculation. Not too much is known about semenators...
Don't you love it when a huge load bursts all over onto your face? Good god I love semenators!
12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.