Originally derived from the phrase, "Do you know what I'm talking about?". When said lazily and mumbled together, the phrase can be compressed into "tumba".

A female's large posterior, a big booty.
From the spanish slang "tumba-burro", meaning donkey dropper, better known as a car bumper.

a fat chick... plain and simple . a fat female

rons word for a fat person

He is super funny energetic and fun to be around but be careful cause shy in the inside. She goes through a lot at home but she is the life of the party but this means it’s hard to figure out her feelings. She only talks about her feelings to her Bestie #BFF

If you got a tumba ur never gonna stop laughing. 😂