Top Definition
KOSY is the short form of "King of Snake Yellow". It is originally from a HK popular's palm user message board -

"Snake Yellow" is means doing your own things during the working hour, e.g. surfing on net, watching newspaper, etc.
Oh ~ your guy is kosy in PUMB now, what's a good thing!
by ac520 February 04, 2005
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.