Gpen 

A Gpen is another term used for a vape for weed. Like an E-cigaret. But this is an E-joint.

Have you hit a Gpen before? They're smooth af!

Gpen by Dsay May 18, 2014

gpen 

An electronic pen shaped smoking device used to smoke marijuana and weed wax

A gpen is like an electronic cigarette

gpen by AGG8501 April 30, 2014