Froggy is a term that can be used to describe someone who is feeling lethargic or sluggish. Other synonyms for this word that can be used to express a similar feeling include groggy, drowsy, sleepy, tired, fatigued, languid, heavy, and torpid. Each of these words can be used interchangeably with froggy, depending on the context in which they are used. Additionally, these words can also be used to describe physical symptoms like a hangover or sickness that leave one feeling lethargic. Understandably, those experiencing these feelings tend to look for ways to enhance their energy levels and overcome the feelings of being froggy.