Pull a Charlie

The act of joining another leadership organization/club in school when you are already part of a similar organization/club (i.e., JROTC Program, Student Government, Student Democrats, etc.). In some cases, a person that has been in a leadership club since freshman year pulls a charlie during their upperclassman years.

Dude1: Man, I heard that dude from freshman year will pull a charlie on us!

Dude2: I know, we should check that club out tho.