Top definition
Failing to reply calls or call back, in a reasonable time frame, when you recieve calls from friends.
I called him 2 months ago, and he promised to call me back. Did he just do a mubin on me? I guess I'll never know, since he will never call back.
by Wax77 September 19, 2017
Get the mug
Get a do a mubin mug for your cat Paul.