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1.
To be pro at everything at a higher level than daristaul, warning: this may generate such massive levels of jealousy that suicide is most likely to occur.
Dam, your so seaver at that game, O SHIT did that guy just kill himself?
by Bloodfury November 18, 2009
 
2.
Any kind of person who bullsits about everything he says thinking everything he says evreyone would believe.
A seaver: lolz did you know i am related to shrek and my dad is a ninja and also my mom is a unicorn?
NORMAL KID: FUCK OFF DUMBSHIT! You think anyone believes you? *SPOOKA PUNCHES THE BITCH*
by the afrocolypse November 10, 2010
 
3.
(noun) A person whose dick is so small because 3/4 of his penis is shoved into his personality.

(verb) "Seavered" Being creeped on by a person whose intention is to get laid.
"He is SUCH a Seaver!"

"Be careful at the frat party tonight, don't get Seavered!
by @@@victum#4004 November 22, 2013