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Verb (past tense) meaning to get an infection caused by the mumps virus, characterised by extreme swelling of the face. Many people living in close contact such as frat boys commonly get mumped. People who get mumped can show no signs for upto 6 days after catching the virus, and are infective and able to mump others for upto 2 weeks. It is also rumoured to spread rapidly through the act of swallowing each other's semen; this may or may not be linked to why frat boys get mumped a lot.
Example 1:

Jared : "Dude, you've been off work for days! What happened?"

Chuck : "I got mumped badly"

Example 2:

Vincent : "Haha look at that guy's face! He got mumped!"
Mumped by Reverend Poleman March 20, 2009
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Mumped is a blend of the words 'mom' and 'dumped' and means to be dumped by the mother of one's significant other.
I was seeing this highschool chick until her mom found out I was 23, then I got mumped.
mumped by EOCA January 16, 2007
Related Words
When you lose your job because of DOGE. It is a decision made by Musk and Trump (Mump) that ends in a negative consequence. Typically these decisions are made without much research or concern for the impact to Americans.
I worked for a Christian NGO and was recently part of a major workforce reduction due to the Executive Order cutting foreign aid through USAID... I got mumped along with 100 of my colleagues who all were called to help the most vulnerable around the world.
Mumped by NALD25 May 6, 2025

hedge mumper 

a lower class of pikey, one that even pikeys themselves frown apon.
oi you old hedge mumper, you aint worth a cup of cold piss.
hedge mumper by harold steptoe November 20, 2007
A hockey term used to describe one who is a bender, plug, and cock sucker all in one...aslo know as a triple threat
Matthew Tufts...kids a fucken Mumper, Ethan Pollock defines the word Mumper
Mumper by Nickandry November 16, 2010
To be acting in a way which is irregular or abnormal.
"My computer is mupped."
"I mupped up on my exam."
"Yo B, thats some mupped up shizzle."
Mupped by SB and AV October 26, 2004
To "Mumph" is to lay out over a chair or couch/sofa in a state where you do not care what you look like, but just want to relax.
Christopher mumphed on the chair with a slice of pizza in one hand and a diet coke in the other, oblivious to the people staring at him.
Mumphed by TYPE August 22, 2014