One hit and quit
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"
one hit quit
Weed that will get the smoker high in one hit. Usually very expensive, but worth it.
Come to the party, we gonna get some one hit quit shit.
one-hit-quit
A one-hit-quit is when something is so good that you don't need a second opinion or backup to know it. You found it.
When I met Nick, I knew he was a one-hit-quit, I didn't need or want anyone after him... he was *that* good. I got everything I needed and nothing else could compare.
one hit quit shit
The dankest of the dank, marijuana with a very high thc content (one hit quit shit is usually around 19-20% thc). Thus you don't need to smoke more than one hit to be really high.
White Widow, Black Russian, and Matanuska Thunderfuck are all strains that qualify (if properly grown and cured) as official one hit quit shit!