A buzzer can also be a pill that makes you dance.
or alternativley and quite bizarly a buzzer can be an object or living thing that looks as if its having a good time (this is only used when extreme amounts of buzz have been consumed)
"Gizza buzzer r kid!"
having multiple buzzers may get one high. these are smoked more commonly with people who are conservative about their marijuana or like to feel lifted on a more consistent basis.
a cross between buzz kill and bummer
you: aww man, thats a buzzer!
me: we were having a great time shopping but then becky showed up.
you: wow, that sucks, she's such a buzzer!