A seemingly long period of time. It occurs most often when under the influence of marijuana due to the altered state of mind. An actually short moment may seem to drag on forever.
Similar to: New York Minute
Dude, that speech lasted a marijuana minute.
I know, I kept wondering if it was going to ever end
How long have you been waiting to finally have sex with your girlfriend?
I don't know man. It's been a marijuana minute.