1. An individual who disrupts another persons positive high through sour and negative behaviour.
2. A sudden crash of emotion.
Jeez you're a downbuzz Cam, always ruining my night.
I was real keen for tonight, but now I'm just feeling downbuzz
The securing of a mateâs sibling; often a sister, for some form of romantic relation or fling
Unspecified Female: âoh man my sister just went home with this lanky ostrich looking fellaâ
Unspecified Male: âBro, sheâs 100% just been winnukedâ