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1.
(Origin: Midget+Joint)

1. n - A joint rolled with small-sized rolling paper

2. n - A King-size joint rolled with considerably less than the standard amount of marijuana recommended for that size of paper. (approx. 1g)
Person 1: Hey! What the fuck is that?

Person2: It's a joint.

Person 1: It's a midjoint.

Person 2: A what?

etc...
by FadieZ September 24, 2007