Is a term used among weightlifters to describe a protruding gut or abdomen. It's mostly due to the enlargement of internal abdominal organs, caused by the use of steroids.

This term was originally made and popularized by Lui Marco, a You tuber & Fitness enthusiast. Now it's even being used and further popularized by Arnold Schwarzenegger,Kai greene and other influential bodybuilder and figures.

Individuals with a bubble gut are usually extremely lean and muscular but have a protruding gut or abdomen making them appear pregnant.
-That bodybuilder has a bubble gut.
-Bubble gut bonanza.
-THE BUBBLE GUT SONG: hey boy drop it down, let me see that touch the ground, You have a bubble Gut Bonanza, drop it down like a belly dancer. Bubble gut Bubble gut Bubble Bubble Bubble gut.
by Mo E.A March 18, 2018
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a sick feeling you normally get after eating a box of KFC.

things such as nausea and stomach pain are common occurrences when you get bubble guts. Death is also plausible
I had some KFC earlier today, and now I have a saw gut. I think I may have caught a case of bubble guts.
by Sapii July 24, 2018
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bubble guts is a feeling in your stomach when you get nervous.
john got the bubble guts before he rung the doorbell and ran
by niggadomus September 7, 2006
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When your budget officer's butt is about to assplode.
I won't be in today. I got the bubble guts.
by Hobag Wack da playa October 4, 2006
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This is the true definition of the ghetto term "Bubbly guts".
This occurs when you are experimenting with methanphetimines or ecstacy.
Your guts turn this way after dropping E for the first 20 minutes before intoxication. Also, you know when your waiting for your crank bag and you drop that duece before it gets there. Thats BUBBLE GUTS. The anxiety shit by any other name. All this is illegal activity, but this is the definition none the less. Meth monster ruined "Bubbly guts" in my experience. Word.
by Brandonconstructionace December 9, 2010
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Bolstered seats often found in a high end sports car such as the Lamborghini Aventador.
by m6alex April 9, 2021
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The constant anal leakage followed by a round of anal sex or greasy, unsettling food.
After getting those nuts in my ass, I had bubble guts for a week.
by tynk July 31, 2007
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