user and abuser 

Someone who is a user and abuser or User/abuser is a person who will use another person, usually in asking favors or special treatment, then purposely or even inadvertently abusing the relationship and thinking they are in the right. Often attributed to drug addicts and alcoholics yet can be a character trait of nearly anyone.

A person who befriends you and begins to ask you for things, like a ride, a cigarette, a couple of dollars etc.
Then one time they ask you for a favor and you cannot follow through because you don't have the time or resources and they belittle you, or get angry at you.
Other kinds of user-abusers will stretch their "Friendship" with you by asking more and more of you until you realize that they are truly abusing the relationship

PETE: "Here comes Fred, he's a friend of mine, we can get a cigarette from him. He's always got cigarettes".
"Hey Fred how about a smoke for me and my pal"?

FRED; "Sorry Pete, I only have a few left"

PETE: "Ohhh, mann, come-on, what about your buds man, we need a smoke man"?

FRED: "Nope, sorry man, that's the way it is now don't be a "user and abuser"

PETE: "Oh, see how you are man, I'm not a "User/abuser", and I told my pal here that you were my friend. We're outa here man"!

user and abuser by SteamTrooper September 15, 2013