Top Definition
Stating the obvious. Similar to an oxy moron, but only a lot more obvious and moronic. a person with peters syndrom may also act like they drink and do drugs, of which they dont. They just say so because they think its cool.

*speaking face to face, person 2 is wearing an obviously red shirt*
person 1: are you wearing a red shirt? *seriously*
person 2: no shit.

"oh my god, ryan has the most serious case of petersyndrome"
by Nation Petersyndrome Society March 19, 2009
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