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A deformed creature who lives with a Jewish family in the 1940s. His family ends up getting captured by Gestapo, and is left all by himself in an attic.
Have you seen Grumbo lately? I heard that he's still hiding in the attic.
Grumbo by Zephyr321 April 14, 2019
The sensation of two midgets simultaneously biting the inside of your ass.
"Oh my god, Britney, I just fucked Jake last night. It Felt Like Grumbo."
Grumbo by Shoes Hee January 23, 2009
something that's really fucking gross or abnormal.
Dude, look at this picture; look how grumbo those tits are lol
Grumbo by watdafak April 22, 2016

Gazumbo! 

An exclamatory word used when overwhelmed with joy, immense satisfaction or shock and awe.

Ryan's new catch phrase. Definitely not Alex's
When I hit a home run in softball I yelled out Gazumbo!!

Alex told someone that he came up with the catch phrase gazumbo and I exclaimed, "Gazumbo!"
Gazumbo! by RyonN2 May 11, 2011
to take a poop,the act of deficating
after all the coffee i drank i had to take a mad grumbo
grumbo by ameecia July 25, 2008

Tutu no grumbo 

- exclamation - Made up gibberish to say to annoy one’s spouse.
I’m glad you got the vaccine. Tutu no grumbo!

You looking fine today, tutu no grumbo!
Tutu no grumbo by Anal Sampans April 1, 2021