A fork of Rural Dictionary
23 skidoo is code for "let's go smoke (weed)." Its double-meaning for "let's get out of here" makes it subtle enough for the non-participating members of the group. 23 was Michael Jordan's jersey number -- MJ for marijuana.
Other people: Blahblah blahblahboringblah.
Smoker: Well, we gotta 23 skidoo!