Collywobbleses is a slang term used to describe a feeling of nervousness or stomach discomfort. Some synonyms for this word include butterflies in the stomach, jitters, anxiousness, apprehension, unease, and nervousness. Other related words include queasiness, nausea, discomfort, and indigestion. Though these words may have slightly different connotations, they all describe an uncomfortable feeling in the gut that is often associated with feelings of anxiety or unease. If you are experiencing collywobbleses, it can be helpful to take deep breaths, drink some water, and try to relax your mind and body to ease the discomfort.