Yash Share definition Flag Yash this is a euphemism for a salad. If you see a soggy ass salad with no dressing or croutons and just a single slice of soggy tomato, you call the salad a Yash. Usage: Ew, who made this salad it’s just a Yash. Yash by realreviews September 12, 2021 Get the Yash mug.