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1.
like the straight arrow, flying forward towards its target, straight up gets straight to the point. No bullshit, I am telling you exactly what I mean.
We should go to a movie straight up.
Dude straight up, lets do this.
by Andrew Shea August 23, 2004
718 215
 
2.
To be right or for real
Person: That is the coolest thing ever.

Person 2: Straight up.
by Tazzaler October 16, 2005
468 142
 
3.
absolutely, totally
straight up gangsta
by JTYRHE June 04, 2004
371 136
 
4.
without ice (used when describing drinks)
id like a margarita please.. straight up, no salt
by amanda February 12, 2005
240 118
 
5.
to be honest, to not lie, to not hide things behind other's backs. An abbreviation of the term straight up is SU.

Dude just be straight up.

Dude, Jane gave head to greg behind my back, thats not straight up.
by Collotta January 13, 2007
166 62
 
6.
NO lies, Honesty, Truthfulness, No B.S., The Real Deal, Word up, etc...
Paula Abdul said it better than I could with the chorus : "Straight up now tell me,
Do you really want to love me forever? Oh, oh, oh...
Or, am I caught in a hit and run?
Straight up now tell me,
Is it gonna be you and me together? Oh, oh, oh...
Are you just having fun?"
by J.Pardner July 26, 2007
91 39
 
7.
Pure, absolute, sh*t like that.
Vanilla Straight Up: No sprinkles, toppings, mixes, just vanilla.
by Zach G. August 28, 2004
89 57