Damn straight

[Tanya Shivari]

a way of agreeing with something

[Mark Zuckerberg]

synonyms: word up, right on, amen, agreed upon.

[Sonia]

Usually a confirmation of a statement or an utter agreement with a persons self.

[Britney]

One way of saying thats so right. Synonym to [hell yeah], [fuck yeah], [thats right], and [oh yeah.]

[Justin Bieber]

An affirmation, usually to a preceeding statement.
Origin: Australia

[Sarah]

As has been mentioned, a way of agreeing with something, but I always found it to be almost condescending (in a cool way.) It seems like a grown-up way of saying duh almost.

[Rihanna]

Something Jayne Cobb from the popular TV show Firefly would say if someone told him how awesome his hat was.

[Tanya Shivari]

Damn Straight. Damn Straight. stuff is good.

[PussyCat]

from strait up no chaser(booze)
sraight liquor
staight drugs