by Jonsmum February 11, 2014
The psychological sickness one contracts when Mumfords and Sons backs out as the headliner of the music festival you're attending. Symptoms include, but are not limited to: intermittent frowning, being teased by your peers and randomly storming off in the middle of the show that replaced Mumford and Sons.
"Janet was really looking forward to seeing Mumford and Sons play at Bonnaroo this year. When they were suddenly replaced with Jack Johnson, she came down with a bad case of The Mums."
by Chicketychina11 June 21, 2013
A person who is known by many, often the funny guy in the group. He/she usually is the player in the group.
by IamDontai November 23, 2021
by yeeturmum July 13, 2019
by qwedfgbnmzxcvghjiopqwertyuiopa October 30, 2013
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