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2.
to agree to something sweet, cool, dope, legit, tight, etc...
"Hey Ivan, do you like the new whip?!"

"Sweeya bro!"
by sweeyaa6 April 28, 2010
 
1.
Combination of sweet and yeah. Used to express how ridiculously amazing something was.
Ivan: "Dude, did you see that kill number four got during the volleyball game?!"

Ray: "Sweeya!!!"
by phatpenguin16 April 28, 2010