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.