a wolf
A guy who chases skirts like they're going out of style and doesn't care if he ends up with a broken heart or a broken nose.
My cousin is a wolf. He dated 7 girls last month. All of them broke up with him. He still doesn't care.
That guy at the bar was hitting on my sister. He's a wolf. I told him to back off.
My friend's a wolf. He went to 3 parties last night. He got 2 girls' numbers. He got 1 girl's phone. He got 1 girl's heart.