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Colloquial description of a one piece leather suite used for motorcycle riding. Term originally coined by highly esteemed female Australian bike rider of Melbourne location many many years ago. Since purchasing her own "onesies" it has been decreeded under Melbourne Bike Rider assesment to be the hottest arse in a set of onesies evvaaaaaaaaaaar !!!
she " Dude onesies for the track today ?"

dude "hell yeah help me pull 'em on"

she " meh, your arse aint never gunna look as good as mine does in onesies"
onesies by sharkuss February 2, 2010
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sexyyy !
sexiest garment on earth ;)
ninette: yo bry, r u going to the pajama party ?
bry: yea im wearing my onesies
ninnete: sexayyy ! ;)
onesies by cytb April 12, 2011
Related Words
One piece long underwear, generally worn by infants and toddlers. Plural of onesie.
I have a drawer full of onesies from when I was five years old.
onesies by phreek123 December 9, 2008
N. urination. Derived from the term number one. Originally used in the sitcom show Scrubs.
"Sorry, gotta go make onesies."
onesies by Scrubby May 6, 2008
A onesier is defined as someone who wears onesies in public.
She wears her hoodie cat onesie everywhere...that girl is a chronic onesier.
onesier by Jo Onesier January 17, 2017
The most comfortable thing one can wear, there is no denying it.
Sally experienced a cozy wonderland as she put on her fuzzy onesie.
onesie by Cosmello January 11, 2015
Onesie comes from the word "one" and means a one-piece suit, usually in the form you use for lazy days at home. It is also used for one-piece snowsuits and one-piece motorcycle suits. The word is sometimes spelled onesy.

The name may be derived from the registered trademark Onesies®, which is a range of clothes for infant children. The word onesie (in singular) does however, in modern usage, more often mean a suit in adult size.
When I come home from work, I just like to change into my onesie and watch TV.
Onesie by EliasG June 4, 2013
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