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1.
noun. A pot smoker. Similar to a flautist, guitarist, trombonist, etc, except that the cheebist's "instrument" of choice is a joint, pipe, bong, or any device used to smoke marijuana. Can be used either as a term of endearment or a mild insult.
1. Holy shit, I can't believe the size of the gravity bong rip you just took down! You are a world class cheebist, my friend.

2. Bill: "Dude, I locked my keys in my car. Can you come get me?"

Randy: "What the fuck is wrong with you, you goddamn cheebist?!"
by Z. Tenao December 07, 2011