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1.
An extremely obsese man who hides his fatness by trying to be an ethug. Commonly mispelled as "plumpo" because of the reference to weight and size.
Holy crap! That pumpo is so annoying. I wonder when everyone will start ignoring him.
by johnathanx April 12, 2007
 
2.
Scottish slang term for getting rode or ridden!! An act of unfortunate pumpage encapsulated by the term pumpo!

When shit goes wrong, its pumpo!!
"you just got pumpo'd"

"It's pumpo time sweatheart"

"pumpo pumpo"

"Oooft son...you got served some pumpo pie"
by jiedo June 23, 2011