The idiom "try to get your goat" describes the intentional act of one person attempting to upset one or more other persons. Goatstolen is disposition of a vicitm of this intentional upset.
The word describes someone who is or is acting upset.
Did you hear Bob get worked up when that guy was camping him in the online game, Bob sure was goatstolen.
also:
I just kept poking holes in his logic until he was totally goatstolen.
On Facebook, the act of hostile taking over someones page or event, kicking the admins and then posting hundreds or thousands of goats while the regular page fans scream WHAT'S GOING ON?! WHAT'S WITH THE GOATS?!
Originated early 2012 with the goating of someone known as "Norma". Has since been done dozens of times by multiple groups and the practice is growing.
We're goating the NRA Event tonight, bring your goats to post!