What is Facebox?
1.
n. a thoroughly better way to say
"heeey girl! u need to sign up on facebook - it's like the coolest thing ever!!"
"oh u mean facebox? i hear it has a lot of obsessed douches"
See
2.
v. To send someone an inbox message on Facebook. Meant to help you stop sounding stupid, like while telling someone to 'inbox' you or 'Facebook message' you, in which case they will invariably use the shitty Facebook Chat instead.
"Hey, send me that link on Facebook."
*recieves link via Chat, subsequently causing the entire browser to close and all hell to generally break loose*
"NO you asshat, facebox me!"
See