Simply means, shitty undies (like when you shit yourself (literally) and you get all shit in your undies.)
by Johnny452 September 16, 2006

- ah man, i heard my girlfriend do a shundy from the next room on new years day. it was gross!
- bet you were well hungover today mate, you looked pretty pissed last night!
- yeah i was hanging proper bad earlier but i just done a shundy and got on with it.
-wouldn't go in that toilet if i were you mate
-why not?
-someones only gone and done a fuckin shundy in there
- bet you were well hungover today mate, you looked pretty pissed last night!
- yeah i was hanging proper bad earlier but i just done a shundy and got on with it.
-wouldn't go in that toilet if i were you mate
-why not?
-someones only gone and done a fuckin shundy in there
by shundyboy2011 January 02, 2011

Underwear that you keep in the back of your drawer just in case but they are no longer part of your regular wardrobe. IE they are ugly and your partner doesn't like them.
I have a bunch of underwear tucked away that are shundies because my boyfriend thinks they are too saggy.
by anw22 May 21, 2013

by weenie October 27, 2004

by TheTreeHundredRidersFriend September 01, 2019

Tom Sizemore!!! hey look at that guy skateboarding with his shirt off at 3 in the morning ! wow now thats aSHUNDI WARRIOR
by MASOOOOOOOO November 14, 2010

Bob says to Billy, "Yo Billy, i bought us a six pack for the game"... Billy replies "SHUNDIES in your UNDIES" - with the accent on shundies and big ending on the undies!!
by nat_bob December 11, 2011
