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
Get the The Mumsmug. by Kbgetsit July 29, 2023
Get the Kayden said suck your mummug. Ur mum is a common insult used for no apparent reason. This also references to Yo Mama jokes. This humor is weird and sometimes unlikable.
by pigjacob June 27, 2018
Get the Ur mummug. Always in a mood and makes you duolingo ,wiping the side dry up and wash the dishes and she will have a go at you for the smallest things in the world!!! Its very unbelievable
by Dave Marshalar March 22, 2022
Get the Mummug. by Unbrokenwand9 April 13, 2020
Get the Mummug. by iwillfuckurmum June 8, 2022
Get the ur mummug. a mum who smokes inside, complains, almost always has a ex husband and always goes to the corner shop for a 24 pack of coca-cola. And almost always has a kid in primary school
by Meltdown.x April 2, 2022
Get the Courts Mummug.