Top Definition
To boiler up (also see, "boiler-up") means to take a hot, fat, steamy dump.
After a night of drinking at the Upstairs, and a late night run to Taco Bell, Matt P. went home to boiler up.
by Matt Painter November 01, 2007

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Taking a fat, hot steamy dump.
After a night of drinking and eating taco bell Steve went back to his place to boiler-up.
by RobW. February 19, 2006

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Dropping a deuce. Firing one out.
"I gotta go boiler up, that taco bell destroyed me."
by FalconBlue November 19, 2007

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To beat the shit out of your opponent.
Purdue tends to Boiler-Up when they play IU.
by JonF October 11, 2007

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Losing in the NCAA Tournament.
Yet again, Purdue goes Boiler-Up in the NCAA Tournament and will not hang a banner.
by Tunja March 20, 2011

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Taking a huge, fat, hot, steamy shit.
After a night of drinking and eating taco bell Steve went back to his place to boilerUp.
by RobW. February 19, 2006

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v _ To lose control and make critical mistakes at critical times, costing a chance at victory; v _ to overestimate one's talent versus the talent of nearby rivals, causing disappointment
See: Purdue Univesity men's basketball players "boiler-up" in basketball; Purdue University's basketball fans "boiler-up" to compare their team to that of Indiana University, historically
by Indiana Dave November 06, 2007

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