A guy who doesn't fit fuckboy stereotypes, and is either ugly or not of usual fuckboy standards- yet they still have a reputation for leading girls on and hooking up with anyone.

An alternative meaning is a fuckboy who flirts with plenty of girls but never takes it any further.
"How on Earth does someone like them pull so many girls?"
"I know right. He must be a second-degree fuckboy."
by GenericAccountName July 27, 2017
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