The phrase "having butterflies" is commonly used to describe the feeling of nervousness or excitement before a big event. However, there are numerous synonyms that can also be used to convey this sensation. For example, some might say they have "fluttering in their stomach," "knots in their gut," or "butterflies in their tummy." Others might use phrases like "tingling with anticipation," "feeling jittery," or "experiencing a rush of adrenaline." Still, others may talk about feeling "butterflies in their chest," "quivering with nervousness," or simply "feeling on edge." No matter which phrase someone uses, the feeling of anticipation before a big moment is a universal experience.