Also written as bet it up, this phrase is used to convey affirmation and solidarity with plans, prices etc. Related to and nearly synonymous with bet

:Meaning thank you. To show appreciation with out soundin' too formal.

the word was born in the south east. Namely Miami, Fl.

Another way of saying lets bet

When a classic movie is remade with an all black cast.

fo-sho, certain of something

"Bet dat up!" Sometimes pronounced "Bet that up!" Is the war cry of the a Southern Baptist choir member

"Far out", "that's cool", "heck yea" ,"fantastic", "badass",etc.
Example:"we are not working this weekend" the boss man said
Charlie replies"bet email up,now I can get my yard work done".