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Someone who brings unwanted negative attention upon a group or activity.
Mike: Yo man, pass the bong over here, i wanna quick hit

Chris: *picks up bong, drops it - smashes everywhere, everyone looks*

Shawntelle: YO there aint no drugs at ma partay, get yo asses out!

Mike: Damn dude, your such a heatsack. What a heatsack move.
by TheFARGler March 02, 2011
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