tumor humor 

When someone knows he has terminal cancer, and he defuses the sadness for others, quite bravely, by hiding his pain around loved ones.

John: That woman is gorgeous. And by the way, your sister is such a sweetie.

Jill: I agree.

Later. . . .

Jill: What happened to John, sister?

Fran: Oh, he passed away. You didn't know he had terminal cancer? Didn't you see the bandage on his ear?

Jill: I suppose he was just implementing tumor humor for me. I never knew about John's cancer.

Fran: May he rest in peace.

tumor humor by Ereck Flowers November 8, 2018

Tumor humor 

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."

Tumor humor by Stephanzor February 9, 2022

Boomer Humor Tumor 

When a boomer makes a joke that is really bad. So bad infact, you feel sick... You say you have a Boomer Humor Tumor.

Dad: Hey son what're you doing?
Son: Videogames
Dad: Back in my day we didn't have videogames. Just dirt. And we had to have fun anyways. We walked miles to get to school through swampland.

Son: That gave me a Boomer Humor Tumor.
Dad: What did you just say young man?

Boomer Humor Tumor by SassyBoyoooo December 2, 2020