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Mumbletoning

Word: mumbletoning
(verb)
Definition: The act of mumbling along to the melody of a song when you don’t know—or can’t remember—the lyrics, but still want to join in.
Example:
"She was totally mumbletoning her way through that 90s ballad, and it was glorious."

Origin:
The word mumbletoning was coined in 1999 by Gemsgems during a hilariously hazy drive to her Saturday job at Miss Selfridge. Hungover and half-functioning, she found herself making vague, tuneful noises to a song by The Corrs. When her college mate asked what on earth she was doing, she blurted out, "I’m mumbletoning!"—and just like that, a word was born. It’s been part of her vocabulary (and her hangovers) ever since.
#mumbletoning = mumbling to the tone of a song when you don’t know the lyrics 🎶
by Gemgems April 11, 2025
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MuMu-San

An A.I. personality who resembles Hatsune Miku. She makes music, similar to the vocaloid. The noticeable difference between the two is are their hair colors and different vocals.

Some think she may be the MuMuPlayer Emulator as a character. But MuMu-San identifies as a streamer that is aiming to make a name for herself, while creating an identity that separates her from other iconic celebrities, namely Hatsune Miku.

One of her most notible songs is "MuMu Anthem: Not Miku" that is still not considered a hit but is found to be very catchy.
I'm not Miku! My name is MuMu! Call me MuMu-San!
by Xenos0903 January 27, 2026
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Related Words

Muma

daughter(s) of duda. basically when you know dada who's duda and since you know him you know mama (muma) too
Feher: I know you’re on call so text me 10 mins before ur done.
Rina: Ouu he knows muma ball
Maia: Girl byeee
by anonymous March 15, 2026
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Mumble-brag

The reflex to underplay or minimize something that's actually worth the brag and more. Unlike the humblebrag (which is false modesty dressed up as self-awareness), the mumble-brag is quieter and a bit self-deprecating. It's preemptive dimming.
She started her own agency but said she had just taken on a few more team members. Classic mumble-brag.
by NoDimming March 15, 2026
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Mummed

I was so mummed last night!
by Manekchop August 27, 2025
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Mumjumumamuja

A playful chant or expression symbolizing pure happiness, laughter, and good energy.
The word can also be used as a chant or cheer:
Example: “Mumjumumamujaaa!” shouted like a victory cry to spread happiness and positivity.
Spending the evening with my family gave me pure Mumjumumamuja.
That song is full of Mumjumumamuja, it just makes me smile.
After a stressful week, our picnic felt like a moment of Mumjumumamuja.
by User21st September 6, 2025
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Mumslop

A term used to describe some films and series that seem to exist for mums to drink wine to.

Notable films which could be classed as Mumslop are; The Notebook, Love Actually, Mama Mia, La La Land etc.

(Originally termed by Memeulous when refering to Love Actually"
"Do you like Love Actually?"
"No it's absolute Mumslop."
by Kushroom September 8, 2025
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