A trademark registered to Gerber Childrenswear LLC, often used in connection with a one-piece garment for an infant or small child, generally worn over a diaper.
The child wore a Gerber Onesies garment.
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.
a single cigarette sold over the counter by a retail establishment, instead of a pack of 20. useful in New York if you don't have the $8 for a pack. also useful for the quitting smoker who just needs one nicotine hit to take the edge off. onesie's are illegal in some states - eg Illinois 2009
"he sold me a onesie with a cup of coffee"
When a girl is so tight, you can only fit one finger in her.
Emma's a Onesie!
A self rolled spliff
that is the size of a rollie
cigarette, using one regular sized rolling paper/skin.
Dave: Is there any weed left?
John: Nah man, not even enough for a onesie.
to masturbate, have sex with oneself, to commit onanism
...and I caught that bitch having a onesie in the middle of the tennis court.