What is Heo?
1.
It means pig in Vietnamese, and is also a replacement word for "hell".
Person 1: Where do pigs go when they die?
Person 2: I dunno, pig heaven?
Person 1: No, they go to HEOOOOO!
See
2.
It is a more emphasized version of the word "hell" when it is used in the same way.
1. I want you to put this cucumber in it.
2. HEOOOO naw!