Top Definition
The act of having the feces of fowl in one persons mouth transfered to another persons mouth. A more extreme and improved variant of snowballing. snowball
"Wanna guanoball?"

"I totally guanoballed your mom last night, it was hot."

"My boyfriend and I guanoballed for the first time last night"
"Congratulations! "
by fresh fresh April 17, 2007

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