Any guy or girl that dates and or has sex with people of the opposite sex at a seeming random rate and of random choice and never having a long relationship constantly going from one person to the next, then the next, then the next and so on and not having any remorse or second thoughts and will usually cheat
Dude 1
"Dude im thinking about asking out Jenny should I?"
Dude 2

"No way man she is a total butterfly dater
by Absol Night July 17, 2011
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