An Einion is a complete sex fiend. You'll find him in a bar chatting up several girls at once, and by the end of the night they'll all have their knickers round their ankles.
Girl 1: "Did you have a nice night with your boyfriend?"

Girl 2: "It was great until me and 4 other birds went home with this bloke. He was a total Einion."
by justwordythings December 29, 2015
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