Definitions by DG4Spiderman

Cinemagsm 

When a movie or movie news is so awesome that you ejaculate in your jeans/leg wear

Cinephile 1:Donald Glover to be Spiderman

Cinephile 2: I just came in my shorts
Cinephile 1: We call that a Cinemagsm

Cinemagsm by DG4Spiderman October 11, 2012