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1.
A term used to describe something that is amusing when you're high, making you feel the high more or increasing the "buzz". Popular term in Ottawa, Canada
That Dave Chappelle video was a huge buzz increase!
by Bobby Boy KuSh December 08, 2009
 
2.
something that makes your buzz increase
John: Do you have a cigarette?
Bill: Yes, I do.
John: Can I bum one off of you?
Bill: Sure.
John: Buzzincrease.
by triplec June 08, 2007