A Scots/Scottish insult translating roughly as “Your father is a cosmetics salesman.” Avon was a cosmetics company that operates like a pyramid scheme, though it is completely possible to be an Avon lady (or an Avon man in this case) and make a profit the legitimate way without recruiting new members.
Scottish insult: "Your father is a representative of the Avon company"
The peak, the maximum, the be-all and end-all of humiliation. The ultimate insult of one's self, one's family and one's dignity. Consider all hope lost in your life if this is said to you. Use sparingly against enemies.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"