A stupid slut named frey let’s a girl “steal his pen” which is code for “screw hailegh im going to go have sex with this girl that just stole my pen because i love sex and am trying to get to 70 kisses”
When someone implies that using a pencil is not good enough for the task at hand, and suggests that you Get a Pen! Ussually said in a loud tone of voice.
An idiom, generally used when referring to teachers, describes when a person looks extremely mad at someone else or yourself, and they (in their head) "click a pen", ready to write someone up, or explode on the offender later.