a long sigh, used when someone says something they have said a million times before, or if someone says something so wrong that you can't say anything back, all you can do is sigh
Vasu: "UNC is so cool, I almost went there you know"
Sawan: "Yeah man I wish Tyler Hansbrough skeeted in my face"
Reasonable person: "huhhhhhhhhh"
When shits about to go down or when shit gets real, real quick. striking an epiphany with your bros. reaching the point of absolute awesomeness. saying something unbelievably crazy/funny/fcking dumb. when your about to say or do something really really dirty.
hey noel, PB this thursday? huhhht
lets get tacos el gordos tonight? huhhht
i finally grew hair on the shaft of my penis!! huhhht
Huhhh is a word used when someone is just droning on and on about bull shit or does something that is just irritating you. The h's in the word "huhhh" can go on and on depending on the severity of the situation.