1. To drop a gigantic shit
2. To ruin someones night, metaphorically, shitting on someone
Bill: dude i just valsparred in your toilet
dave: that shit better not be on my seat

Steve: you completely valsparred rusty's night when you pissed in his beer
Me: dude shut the fuck up
by TMooney February 21, 2008
4 Words related to valspar

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