When straight dudes feel, by virtue of their strong heterosexual presence, that they will bring superior straight vibes to an otherwise perceived-to-be-gay place. Opposite of Gay Up the Place.
Straight Dude #1: Let's go to Club X8@y& tonite.

Straight Dude #2: I'm down for it. We'll straight up the place!

Straight Dude #3: O fosho, that place be gayer than gay.
by sarasplayroom.com March 1, 2010
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To be completely embracing Judiasm, and consider oneself as a practicing Jew. Must have strong lineage, too.

A 'Straight up Jew' must be completely practicing, and not jew-ish.

A Straight up Jew would do the following:
1)Celebrate Haunnakah, with the candles
2)Study the Torah
3)Not celebrate Christmas
4)Have a jewish mother
5)Know how to prounounce those tricky "hhhlaahck" sounds
6)Go to temple every week.
Hannah: Mr Goldblatt, are you a Straight up Jew, or are you Jew-ish?
Mr Goldblatt: I am Straight up Jew, ach!
by g-diggity February 24, 2008
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A subset example of the affects of stripper mentality. Usually a woman who as a stripper became accustomed to making ungodly amounts of money in short time spans. In the process draining men of their possessions and bank accounts. However, now as age has taken hold and beauty has faded she resorts to the oldest make a buck profession. That's right, massage with a happy ending.
Dude: Jake, what's up with your girls mom? She be suddenly frontin a lot of money and new stuff. What gives?

Jake: She's straight up a ho! Giving lonely old men happy ending massages and telling them what they want to hear.
by T_rump_supporter March 20, 2016
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The realest type of murder in the game; When you are straight up murdered you are way more murdered than regular murder victims, Rappers are commonly known to be straight up murdered.
"Man that bitch Ralphio got straight up murdered , heard he revenge pooped all over Filthy Pete's brand new Jordans"
by NotTimothyDalton September 1, 2016
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Without class or moral distinction of any kind.
"Man, did you see that shit? He straight up licked that bitch's face! Man, that is straight up ghetto!"
by Anjin'sGal December 3, 2011
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