To fleer is to hold a loaded pipe (or other smoking device) for a long time while in a group of people smoking marijuana. This is often done at the annoyance of the other smokers who would like to take a hit.
Hey, it's 4:20! Quit fleering and pass the pipe!
by fleerer August 31, 2007
Verb; Holding on to a marijuana pipe or other paraphernalia, usually while pausing for a story or simply forgetting to pass the pipe, when one is in a group of others smoking marijuana. This is usually said when expressing annoyance with the person who is not passing.
"Hey, dude, hit the pipe. Don't fleer it, alright?"
by Francis H. McDonnel September 13, 2007