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A muso is a person who is obsessed with music.

Their record collection will contain music and artists nobody else has heard of, and if they believe that an artist is becoming popular they will deny they ever listened to them and quickly dispose of any evidence.

If they come around to your house they will make a beeline for your music collection and then criticise everything in it just to make sure you know they are cool.

As a sideline they will take up the acoustic guitar and then force you to listen to their "revolutionary" take on what music could be like. It will undoubtedly be dreadful and unlistenable.
You're such a muso, if other people have heard of it you hate it.
by Squishflop December 26, 2009
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Jul 26 Word of the Day
Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term β€œsecond string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A β€œSecond String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed
I got a call from X the other night. She had an extra ticket to a concert she bought for a friend, but they couldn’t make it so she called me to ask if I wanted to go because I am her Second String Friend.
by Deus-ex-machina August 26, 2020
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Muso is a derogatory term for musicians, typically used by sound engineers.
"Fucking Musos showed up late, missed the sound check and then tried to tell me I wasn't mixing the bass loud enough."
by BurbanIctionary June 28, 2014
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A musician who uses 12 chords where 3 will suffice.
Why do Rush have to include so many deeply unnecessary chord changes in their songs? Man, what a bunch of total musos.
by Mysterious Alan December 24, 2006
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A cruise ship musician who sleeps all day plays half the night and spends the other half trying to fuck a dancer.
That fuckin Muso is still sleeping?
by Soundtaudio May 24, 2014
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A person who learns music and has instrumental lessons at school.
I had a maths test this morning, but I 'accidentally' missed it 'cause I had my weekly trombone lesson. Too bad I'm a muso. I'll just have to not do it (mock sigh).
by greykoala November 18, 2009
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