Definition

A joint-passing protocol where smokers take three hits and hold, pass, then two hits and hold, pass, then one hit and hold before releasing. It's a coordinated breathing exercise for people trying to get very, very high.

Example Usage

We tried the 3-2-1 method last night and nobody remembered how to speak.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=3-2-1&defid=377984)