A word used as an alternative to the phrase 'What the fuck'
Used in respones to random, weird, or stupid comments and actions.
Usually wuesd in a positive manner, as opposed to in an offencive or agressive manner.
Usually elongated when spoken: Seeeeeen....
Can be added to by putting the word 'weighty' before it, eg. ''Weighty seen!''. Can be added to even more by putting 'big' before this, eg, ''Big Weighty seen!''.
When the person you're talking to click on your name and hypotheoretically read the message you sent her, a small logo "Seen" appears under your words.
It has been the reason of a few breakups, suicides and uninvited sexual intercourses.