The tumor is when you have one testicle showing outside of your pants/shorts, you then turn to an audience and ask them " Does this look like a tumor? ". The audience will look down at your ball sack and then they say "what the fuck man" and then you laugh at their stupidity.
Nick: "Hey Rob does this look like the tumor?"
Rob: (looking down) " What the fuck man, why you gotta show me your sack?"
Nick: "Hahahahahahahaha dumbass"
by Nickross August 2, 2009
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Someone or something that inserts itself into your life and doesn't go away until you've either died or blasted it with lasers.
God, Zack is such a tumor. He just shows up and spreads his cancer everywhere.
by Mr. Pudding July 13, 2018
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Karate choping someone randomly in any part of the body and shouting "tumor" and after they ask why you just "tumored" them you tell them they are going to get a tumor wher you just "tumored" them.
Alex karate chops Will in the arm. Will says "what the hell was that?"

Alex replies " I just "tumored" you!"

Will replies "what does that mean?"

Alex says "your going to get a tumor on your arm
now"

Will replies though his tears " I don't want a tumor !"

True story.
by Alex Hof January 22, 2008
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When two people have a same sense of humor.
Wow! We both have a tumor, sick
by Jdfr8s June 27, 2018
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Sally: Happy Birthday Tim!
Tim: Actually I'm a tumor baby.
Sally: Sworry, Happy Removal day Tim!
by classiccowz February 3, 2018
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A large burned air bubble that sometimes forms in the crust of a pizza, rendering the slice that contains it significantly less appealing.
Customer: "I'd like a slice of cheese, please."
Sbarro employee: <Starts plating up the big bubbly piece>
Customer: "Not that one with the pizza tumor!"
by Rusty Camaro April 10, 2006
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Any character, fan, or thing related to MegaMan, because obviously the large robotic limbs are tumors.
by DOCTAH WAWY October 4, 2008
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