buck

v. When , after smoking a usually large amount of kush , a person starts to hallucinate and have a bad trip. It sometimes leads to thoughts of dying before coming off the high .

It derives from the situation where you are riding a mechanical bull , and it throws you off with force .

billy: "oh man , i smoked some kush this weekend and i buck'd out !"

jill: "that sucks , dude ."