Top Definition
Someone who thinks they are like the cartoon character, Mighty Mouse..."here I am to save the day!" A coward who suddenly finds the 'courage' to tell everyone how he would have been the hero in a situation.
i.e. Mark Wahlberg claimed that he would've been able to single-handedly over-power the 9/11 terrorists and prevent a plane from crashing. Mark has 'Mighty Mouse Syndrome'.
by Lehitraot February 08, 2012

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.