Top definition
A rear end that is exceptionally attractive, well-defined, or desirable according to the butt fad of the month.
Tight ass on that boy!
by MissionDoll November 11, 2004
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2
A cheap person or a over cautious person. Tight taken from 'Uptight'.
Dude, Macv won't even hace people over cuz he thinks we will make a mess of his house, what a tight ass.
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3
someone who is reluctant to spend money when they have no reason not too
Sully is such a dumbass and a tightass, he works full time and has has no debts or anything important to spend his money on, yet he wont buy drinks for his mates
by GOD September 12, 2004
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4
A small but really nice ass

It's really curvy and you just have lust for it.

Or when a girl just wears really tight skinny jeans that you can see her asscrack through them.
Man christina has such a tight ass in those jeans. I just wanna buttfuck her
by Niceazz September 22, 2009
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5
Someone who treats others ideas and opinions with scrutiny or sees the world in an extremely cynical and sarcastic view.
"Grady can be a real tightass sometimes."
by donnie December 08, 2004
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6
combination of tight taken from uptight and ass taken from asshole. A tight ass is someone who could be uptight in a negative way.
That cop gave me a bullshit ticket. What a tight ass.
by Drew Gray December 03, 2005
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7
Someone who has something up their butt. Tight asses generally don't enjoy anything fun, spontanious, or interesting.
Matt: Hey, do you want to come to a party with me tonight? We're going to get so wasted!

Jack: No thanks, what if we get in trouble!

Matt: Whatever. Stop being such a tight ass.
by Missouri March 18, 2008
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