A phrase made popular by the 1989 movie 'Heathers' and the 2014 musical of the same name. It is very similar in meaning to 'Are you retarded?'.
Heather Duke: Can I be red?
Heather Chandler: Did you have a brain tumor for breakfast? I'm always red
Heather McNamara: I've been looking forward to this all day!
Heather Duke: Did you have a brain tumor for breakfast?
Heather Chandler: Did you have a brain tumor for breakfast? I'm always red
Heather McNamara: I've been looking forward to this all day!
Heather Duke: Did you have a brain tumor for breakfast?
by ChrisWiltrout December 30, 2016
A grandiose insult only used for the highest of offenses, it means the victim of this unspeakable offense, are a mineral consuming infant with a round physique and the facial appearance of a tumor
"my girlfriend cheated on me the other day..."
"Well she's a salt licking skittle lookin tumor baby!"
"Well she's a salt licking skittle lookin tumor baby!"
by PixelKat February 21, 2023
When somebody makes a really bad joke, or (even though is seems there's no such thing as) a bad pun ( :O )
Dave: "What did the fish say when he swam into a wall?
Dam."
Steve: "... Tumor Humor, Dave. Tumor Humor."
Dam."
Steve: "... Tumor Humor, Dave. Tumor Humor."
by Stephanzor February 09, 2022
by k7lty February 03, 2015
When a man’s cock is so fucking massive that it causes a bulge on the exterior of a females stomach when deep inside, protruding upwards creating the image of a bump and tumor
“Girl, last night.. I was watching him fuck me raw and that cock tumor, my stomach was bulging from his massive cock”
by Double_savior19 August 11, 2022
by wowiewowzers July 02, 2024
A calcified mass in a person's intracranial space that is created from when a person jizzed a fuckton of fluids at the end of a blowjob.
by eggsandpan December 01, 2018