A guy who has known a girl for a long time, but is only interested when another guy is.
Jacqueline: What's Nick's deal with being up Lisa's ass lately? He never gave a crap about her until Joe came along.
Jess: Eh, he's just a girl biter, don't mind him.
The constant act of sex without a break.
Jill: Where have Joe and Lisa been? I have not seen them for two days?
Jack: They are probably locked up in a hotel room having a nutfest.
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