That unsettling churning in your stomach, experienced when one has the intestinal flu, food poisoning, or a dose of Montezuma's Revenge . Example: I shouldn't have eaten that whale fat and blue cheese burrito. Now I've got a serious case of rumble guts.
RUMBLE GUTS
Meaning of RUMBLE GUTS in English
Slang English vocab. Английский сленговый словарь. 2012