A tumor seen on medical imaging, usually chest x-ray or CAT scan.
"He's got a bunch of goombahs on his chest film, which probably explains his recent weight loss."
by Slithy Tove March 20, 2005
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see Sardell, Stephen
Jesus Christ, Steve! dont be such a fucking goombah!
by G. M. April 5, 2005
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A degenerate treehouse dweller, one who resembles a mushroom, but isn’t one.

The gooombas tend to live in the depths of the urban wilderness, and often sh*t in the woods (big daddy JB gets pissed but don’t worry ‘bout it).
Proeski: “yo, grombo, did goombah sh*t ‘n the woods?”
Tugboat: “idk man, JB taught the girls to sh*t in the woods rencently n they prefer it to sh*t’n in the haus so I could go either way”
by Proeski January 5, 2023
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A 'sister'. A close friend, who has become so via the internet, that is basically like family.

Someone who means a helluva lot to another.
"Say, Lora, who's your Goombah?"

"Why, my Goombah is Clare."

:)
by PoisonedHope June 7, 2005
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someone who is embraces their Irish heritage a little too much..
look at her, she’s such an irish goombah.
by avery1026 July 20, 2021
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When your Italian friend says some dumb ass shit.

(Can be used on none Italians as a comparison as well)
Ex:

Tony: Hey if the world is round, then how come our maps are flat?

That is a goombah moment.
by That big WOP August 17, 2021
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