A one piece snow suit. Worn back in the day when skiing was young. Now commonly worn by thy Gaper. Comes in Solid or Multiple bright colors. Do NOT wear in Colorado or you shall get mugged.
by A Local Coloradian May 2, 2009
Get the Onesymug. by 1234blahblahblah1234 February 20, 2011
Get the Onesismug. by ElizabethDrake June 3, 2018
Get the Onesiemug. 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"
by mak108 August 22, 2009
Get the onesiemug. by Dirk420 September 7, 2006
Get the Onesymug. Emma's a Onesie!
by Lateofthepier October 20, 2009
Get the Onesiemug. by cousinjack49 April 23, 2014
Get the onesiemug.