Regarding fighting (Mixed Martial Arts, MMA, UFC or Boxing) when a fighter is punched in the head so that, in slow motion, you see his cauliflower ears flap around like the animated Disney character "Dumbo".
He was hit so hard in the head his ears started to flap. He was Dumbo punched!
by brokenlegmike March 16, 2014
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Same meaning of "Dumbass", but more than that

Even more than "Dumbest"-
A: What's 5 + 7?
B: 5 + 7 = 24!
A: Wrong, you Dumbo-Asso!
by Katsuo Tomagawa March 1, 2022
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Same meaning of "Dumbass" but more than that

Even more than "Dumbest"-
A: What's 5+7?
B: 24!
A: *Insert The Protagonist Sounds that only Danganronpa fans heard this*
A: "No, That's Wrong!"

A: Who's this?
A: *Shows the picture of Rick Astley*
B: Hmm... Is that Peter Parker?
A: Wrong, you Dumbo-Asso!
by Katsuo Tomagawa March 1, 2022
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When a man or transwoman is standing naked, usually in an athletic stance, thrusting their hips front to back so their shlong rapidly flies up and down like the trunk of an elephant. If this is done with enough length and speed, it is generally accompanied by a noise not unlike clapping.
Trevor’s giant shiitake was flying around so fast during the hungry dumbo that it looked like a whole bag of mushrooms.
by Captainclap May 4, 2023
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Is when a guy is getting bossed up by a girl then pulls on her ears and forces his donk deep in the girls mouth to make her choke.
I was messing with this girl last night then dumbo smacked her and she fell down crying and trying to breathe.
by iSkeet707 January 7, 2012
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A sexual act in which a woman's vajayjay flaps are stretched out using a large rubber ball. Stretched out to the point where they resemble Dumbo, the flying elephant (dis is the point of no return). The man, or woman then flips the stretched one over, onto their head and uses the flappy flaps as wings. They fly over the colonies, dropping bombs and taking names. People get mad and scared. You have to start blocking your windows wit black fabric they will find you though, they always find you.
Jeff: yo watup man gess wat i did last nite
Teb: *limping, bleeding, dying and working up a sweat* i think i know.
Jeff: reverse dumbo.
Teb:*sheds a tear* i knew it

*fade to black*
by a_literal_oat July 25, 2014
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A dumbo drop is similar to a rusty trombone. It is where you are receiving a handjob while the person is licking or eating out your asshole. However, what makes it a dumbo drop is the act of defecating while they are doing this.
Man, this girl last night was nasty. While she was giving me a rusty trombone I had to shit so I decided... fuck it... I'll just dumbo drop her.
by TheRealSuperAIDS July 15, 2009
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