means to hide ones urine...
" hey steve get my wee bottle out from the fluids drawer, im going to have a stash slash"
by 420MUSIK June 12, 2013
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Contraband stored deep in the vagina in order to evade detection by authorities.
Jade is the coolest chick ever. She did a slash stash with the E so we could party on vacation.
by JadetheBrillaintGirl January 4, 2011
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