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1.
A wild, strange, over-friendly, excited, weird, creepy at times, sexual person that one may consider extremely lovable.

Albeit being particularly friendly, he still has random fits. He often wears an absent-minded smile. Any strange person could, in truth, be described a Proupon.
You're so funny ! You're such a Proupon !
by Elizabeth-worshipper June 05, 2011