A euphamism for one's testical(s), used by immature boys to make an unsuspecting victim look at it / them.
Hey, man, check out my tumor!
by Kisil February 19, 2005
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we'd go to the club if you could get rid of that tumor of a girl
by nappyafrochik April 06, 2003
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-male porksword that looks like a piece of dead meat
-easy way to get away with saying "penic" without getting in trouble
- a word made up while eating burritos and googling shit
-an especially special word made up my Savannah =
Kelsey: Wanna see Pete Wentz's dick?
Savannah: Sure
Savannah: WTF, is that a tumor??!?!?!
by SavannahSuicide June 12, 2008
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A general exclamation of emotion. Accompanied by the word "squeal" for more emphasis.
I just got a PlayStation 2? Tumor! Tumor squeal!
by Hand Hanzo December 21, 2004
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A ugly boy that you can't get rid of without surgery or you could just kill yourself. You know who you are. The annoying one in the party that you don't like but you don't want to be mean to. And he is a pervert to little boys and WILL touch you in inappropriate places
Eww look at the Tumor

Run away its the Tumor
by AssassinCNB May 13, 2016
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1.) An unbelievably annoying person that is so hard to be around. No one can stand this person for more than 30 seconds.

2.)A swelling of a part of the body, generally without inflammation, caused by an abnormal growth of tissue, whether benign or malignant.
1.) "Man, Sean is being a total tumor right now."

2.)"Turns out Sean actually had a tumor, he's in the hospital now."
by Quinnlandmine November 19, 2017
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