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When you have a poo in the shower and you pick it up and throw it into the toilet
Mum:are you ok in there
You:yeh I just kaplunked

by Mckaysmitochondria June 04, 2018
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a person who parties a lot and i mean a LOT, fun and naturally chill person, a josh or a chris
"yo its so kaplunk dude" "yaa"
by tonysmoney December 12, 2013
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