twonker

A dump when turds fly out hitting the water making a "twonk" sound.
I just took a massive twonker and now my butt is wet.
by fartfartfarter June 14, 2008
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dozy twonker

Just add dozy to twonker and you've got another sentence!
"you're such a dozy twonker"
by Alex H January 29, 2005
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