An expression of agreement.
Don't pull out your
grammar books with this one.
Very often said before the person you're agreeing with has completely finished thier sentence.
The though is usually pronounced
doe.
A-The Spurs winning the championship, mayne.
B-Man the Spurs are the most boring team I ever seen. I seen
Tim Duncan yawn twice the last time he posted up.
A-Man, whatever works, that shit wins championsh--
C-I'm sayin' though!