"Seen it" is a shortened version of "Seen Your Arse". A person who has "seen it" has become suddenly irate or upset, often disproportionately, as a result of bad news or misfortune.
by #atlanticshunter September 16, 2019
Get the Seen Itmug. Lil white boys with stock ass truck you can find them a a fast food place every night in a jerk circle
by Stocktruckhater October 29, 2020
Get the Ever seen societymug. by I got rejected November 22, 2019
Get the seenmug. Refers to a brief period where an aged-brained person absent-mindedly allows his clothing to slip down or gap open, temporarily showing one or more of his privates.
I changed from my shorts into my pants at da bus-stop, forgetting dat I'd neglected to put on any undies beforehand --- definitely a "seen yer" moment!
by QuacksO October 6, 2024
Get the "seen yer" momentmug. 
That food was bangin' you seen!
I need to close that hole, you seen!
Let's smoke a bowl, you seen!
He's swampin', you seen!
Let's hit the Pais peep, you seen!
I need to close that hole, you seen!
Let's smoke a bowl, you seen!
He's swampin', you seen!
Let's hit the Pais peep, you seen!
by ItsMelanieBihh June 16, 2021
Get the you seenmug. by @mankabeer January 23, 2024
Get the seen-in-lawmug.