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14.
1)To represent, in a stereotypical fashion, a memeber of the young, lower middle class black society. Can be used to reference a person of non-balck heritage. Instead of saying something such as "he's a straight up nigga", the phrase would be reduced to a shorter (and more agreeable) "he's straight up"

2) a word use to describe something/ someone that is exciting or worth while
1) "did you see that guy with the ghetto blaster? that guys straight up."

2)- "man, chris. youre badass....you totally chugged that fifth of jack."

"that because im straight up"

-"hey did you go to marks party last week? i heard it was off the chain"
"hell yeah man....that shit was straight up"
by ChristopherO October 20, 2006
 
1.
To be right or for real
Person: That is the coolest thing ever.

Person 2: Straight up.
by Tazzaler October 16, 2005
 
2.
absolutely, totally
straight up gangsta
by JTYRHE June 04, 2004
 
3.
without ice (used when describing drinks)
id like a margarita please.. straight up, no salt
by amanda February 12, 2005
 
4.
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
 
5.
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
 
6.
Pure, absolute, sh*t like that.
Vanilla Straight Up: No sprinkles, toppings, mixes, just vanilla.
by Zach G. August 28, 2004
 
7.
being honest, telling the truth
When he told me about what he had done, I was surprised! I asked him "Straight up?" and he said "Yeah, honest!"
by Pro-Love Girl May 02, 2010