Highly recommended or add into a collection
Outkast's "Speakerboxxx/The Love Below" is a must-have.

This is a must-have for those that want real music.
by Henry Cooper November 20, 2004
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The act of making lots of typing errors and/or the act of turning things into other things and/or moving from one thing onto another.
1. Its very hard to therans must from a small car to a big car.
2. I'm trying to therans must this stone into steel.
3. I'm osrry, I wsa benig busy. (The act of therans musting while typing)
by Waldamar January 12, 2011
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(From the fact that certain appliances from Europe could not work in America)

A phrase uttered when someone or something does something different from normal customs or that it fails to work properly considering it's use.
Jack: Damn, why can't that screw tighten up!?
Reginald: Well, does it seem to be "righty loosey, lefty tighty"?
Jack: Of course, it must be European.
Reginald: I have to go Jack, I have to catch the 3:15 autobus to Bowling Green and help my constable friend to load lifts on a lorry and relax with some Earl Grey and crumpets.
Jack: Right...now YOU must be European
Reginald: No, I said that for the fun of it.
by The Avenue Majestic August 17, 2009
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An educational way to say you didn't by the use of new-frontier, questionable grammar. Without the contraction, reads "must have not."
I do not recall, so you must haven't.

I must haven't heard about the band, probably because they're only on Myspace and suck ass.
by Experimental Mistress October 13, 2009
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X-Must: Fictional Cola from the video game Headhunter

*** SPOILER ***

&It &turns &out &to &be &part &of &a &plot &to &infect &the &people &with &a &virus
"X-Must has 100% artificial ingredients!"
by TsuQ May 24, 2009
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What an ignorant person or dealership tech says the problem is when he or she does not have the mental capacity to properly diagnose an electrical problem in a vehicle. This conclusion is typically drawn after a tech plugs in a scan tool that does not tell him what the problem is and has no clue how to troubleshoot further.
I cannot figure out why your car won't start, must be a short
by estebansux May 25, 2011
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It is necessary
Not really hungry and cannot be bothered to cook. But needs must
by Needs must August 27, 2020
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