Top definition
Someone who stops a friend from smoking some ganja for any reason except for the police being in the general area.
Joe: "Yo you wanna go smoke?" Bob:"hells yea!" Rob:"Bro you cant you'll regret it" Joe and Bob: "Rob stop being a pot blocker"
by foxinator March 14, 2010
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2
one who does prevents a person from consuming marijuana at 4:20
Pothead-"We're gonna go smoke, you in?"
Random Person-"I'M CALLING THE POLICE NOW!"
Pothead-"Man, what a potblocker"
by vpossible March 22, 2010
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