Best definition
A yobbery is the act of having an encounter with a yob. These encounters include;
being in a place of yobs

other relation to being a yob
Other relating words include
Being yobbed on, yobbing, to be yobbed on, yobbish, yobbed on

I was walking to the train and I was the victim of a yobbery. They made fun of me, stole my phone, wallet and iPod and made verbally shit on me.

My mates and I will yob on you.

You’re turning into a yob

Praise the master Yobby