Somebody who backs out of a pre-planned activity for one or more lame reasons.
Dave is a major league pussy for bailing on slinging the rock tonight.
by Hairbo July 19, 2006
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When you scratch your ass crack and your finger smells like shit.
Kevin made me smell his fingers after he shaved his asshole and he had some major league stink finger.
by Stinkfist911 November 11, 2015
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Also known as a mlmu, it is used to describe a moment when someone (including yourself) humiliates themselves, reveals a secret they didn't want to reveal, says something bad, etc. In public or in front of the boys, and Is so bad that it can only be described as a major league mess up
Person 1: hey, did you hear that (famous person) said the n-word on their social media account?

Person 2: yeah bro, that was a major league mess up
by ChezE May 3, 2020
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Straight Gangster.
Straight Love.
Straight Class.
That dude has Major League Swag!
by L.V. $wagtastic May 24, 2023
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An interjection that is either used to express congratuation or confusion.
Example 1:
Hiko: I just got into this new university for smart people!
Hako: MAJOR LEAGUE FUCKIN BASEBALL
Example 2:
Hiko: Explain why there is a cat in the fridge?? It's only us.
Hako: MAJOR LEAGUE FUCKIN BASEBALL
by MissSaikou September 17, 2023
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