Top Definition
Noun - A metaphorical reference to someone who is being lame overall by typically expressing an overall lack in desire to do anything cool or fun, as if there is a 'Bad JuJu' worm in their ass causing the upset.
John - "Dude did you see Matt last night? What was up his ass?"

Alex - "Yeah dude we were all bored and I offered to drive everyone to go cliff jumping, but he said no. What a bungworm."
by buttrapinpirates July 31, 2013
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