1. used to describe something that points upward
2. saying used by people to exaggerate something
1.that stick points straight up
2. Yo, that's straight up stupid, man!!
by Andrew May 04, 2004
To do something honestly, definitely, exactly, or without making a mistake.
It is often said for emphasis
Guy 1: Dude, I straight up banged your mom last night!
Guy 2: Not cool man.
by Tarboy9 August 18, 2015

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