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1.
plain white men's brief underwear; often torn or soiled
I wear dem tidy whities
by Dana2902 October 17, 2007
 
2.
tighty whities that aren't skidmarked
i ain't goin' out without my tidy whities on.
by the mostly reverend mostly kim January 05, 2014
 
3.
Men's white cotton briefs.
i can't believe that dude still wears tidy whities.
by njf October 29, 2007