Rootin' tootin is a phrase that is often used to describe something exciting or thrilling. However, there are many synonyms that can be used in place of this phrase. For example, some popular alternatives include phrases like "rip-roaring," "high-octane," or "crackerjack." Other synonyms that might be used to describe something that is rootin' tootin could include words like "thrilling," "exhilarating," or "pulse-pounding." Ultimately, the choice of synonym will depend on the context of the sentence and the tone that the writer or speaker is trying to convey. Regardless of the word used, these synonyms can all help to convey a sense of excitement and intensity.