when you kick someone's door in and rob their house. the reason for it being named "hiyah" is because it resembles a powerful karate kick(doesn't have to be a karate kick, just strong enough to open the door)which you would yell "hiyah"..you don't yell it though, unless you want them to know you are trying to rob them.
steve:"aye man, you aint down to hiyah that nigga's house down the street with me later on tonight."
terry:"hell yeah im down, i heard that nigga was hella rich. ima see if i can get a free ps3."
something a cute girl says to a boy while kicking him in the dick
boy: heyyy, will you say some cute shit to me, while asserting your female dominance on my dick?
girl: Aww, come here you! Hiyah!
*kicks boy in the dick*
You cute lil horny beast, I’m like a sexy tiger! rawr!