When smoking weed, often times you find people are stingy about sharing the pipe/j/bong/blunt. For this reason, there is the "one hit and quit" rule. It's pretty self explanatory, you take one hit, and pass it to whoever's next. Some variations of this can be the "Three hits then quit"
"I don't have a lot of pot tonight, so everyone one hit and quit"
by I Fucked Your Mom February 15, 2006