I thought it very appropriate to provide the list of vocabulary that the Gladers use often.

Taken from the Maze Runner Wiki. 

Klunk - means "poop" or "crap."
Shank - means "friend" or "fellow."
Shuck - an expletive used to bring attention to one's annoyance or frustration.
Slim it - means "calm down" or "shut it."
Slinthead - a derogatory term used mostly by others when one makes a mistake that involves repercussions.
Greenbean/Greenie - the newest arrival to the Glade.
Newbie - a newcomer in the Glade. Can refer to a Greenie, or anyone else relatively new.
Good That - said when a Glader agrees with someone or something.
Dong - means "feces"; also used as a derogatory term.
Jacked - describing a person who is messed up in the head.
Bloody - commonly used as “bloody hell” by Newt. An expression of strong emotion.