Buzz Chaser
Someone who intentionally seeks the company of those with drugs or alcohol, with the intent of the seeker getting a "free buzz."
Text message 1- Hey, r u guys doin 2nite?

Text message 2- Oh, not much. just catching a buzz. you?

Text message 1 - ...oh, not 2 much...

-conversation between text 2 and other person-

Other person - What was that about?

Text message 2 - Oh, he's just being a buzz chaser.

(Knock on the door)

Text message 1- Hey! let me in!