Antonym: Not yum as
Me: No way man! It's yum as!
Source: Joe and friend, Antartica
2. Can also be used as an answer to mean "well, what about you?" It's commonly said "well, Yuma isn't that far" Because of the similar pronounce to the word "you". Pronounced as You-ma. Mainly used as a counter when somebody is saying or criticizing something he lacks or has.
B: Dude, Yuma isn't that far.
A: damn, I'm not gay!
A: Damn, that guy is so Geek... he likes Naruto!
B: Hey mate! What about Yuma?
A: yeah you are right, I like Naruto too.
B: Well... soy tu padre (I'm your father)
A: lol, you win