Man boobs. A guy is said to have gynomasties when his chest is flabby and resembles a females chest.
Matt always teases Scott when they are at the gym: "Dude, you need to do more cardio, you are getting gynomasties!"
© 1999-2015 Urban Dictionary ®
Free Daily Email
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.