M50 

A large penis.

Christian: "Hey, what size are you?"
Ellie: "I'm an M50."
Christian: "Oh damnnnn. 😍"

M50 by mommyashley July 11, 2021

M50 bananas 

Expression used to confuse people, and make them check urban dictionary for the definition.

you are the best example.
you just found M50 bananas.

M50 bananas by Woji October 25, 2018

Crash Into A M5000 Day 

On the 15th of December You Crash into a manchester metrolink M5000 without any charges. double points for killing everyone onboard the other trams. triple points if you die

Local Florida man crashed M5000 tram into a river.
Crash Into A M5000 Day

Crash Into A M5000 Day by T68A And T68 Lover December 9, 2020