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1.The act of emitting excessive warmth from the rectum. At times this also signifies the need to use the porcelain destroyer to create a repugnant rectal emission. Commonly known as farting.

2. The cause of a dutch oven.
"Man it stanks up in here. Who's been blasting the heat?"

"Damn those jelly beans are gonna make me blast the heat tonight."
by TheMerryWebSir March 24, 2014
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