look up any word, like doxx:
 
1.
When you combine "coldboxing" (shutting the doors and windows with the window a/c on to create a cold box/room) with "hotboxing" (shutting the doors and windows while everyone smokes pot so all the extra smoke is contained and inhaled). Cool times!
Oh man, once summer starts, we gotta coolbox your apartment and watch Mean Girls!
by lesleygee June 25, 2010
 
2.
When something that once was unique and special, has now become popular culture.
Coolbox is a term for anything or anyone who follows trends with no question. For example 'Kings Of Leon' - Coolbox, Converse Trainers - Coolbox. The list goes on....
by coolbox October 27, 2009