Definition & Meaning of "sheesh"in English

What does "sheesh" mean in reaction slang?

The term "sheesh" is an exclamation used to express surprise, admiration, disbelief, or emphasis, often in response to something impressive or intense. The structure is a drawn-out form of "sheesh," originally an informal expression of exasperation, later repurposed in internet and youth culture as hype or praise. It is commonly used in memes, social media, and casual speech to react to something notable or over-the-top.