The classic, OG Sri Lankan slang for pure enjoyment, a happy vibe, or the state of just having a genuinely good time.
While the younger generation might default to "Aathal" for a good vibe, Somiya has a slightly more nostalgic, old-school charm. It is the ultimate word for being completely stress-free and living in the moment. It is heavily associated with good food, great friends, a couple of drinks, and maybe a baila session.
If someone is "Somiye innawa" (living in somiya), it means they are chilling and living their absolute best life, unbothered by the world's problems. If a group of friends is "Somiyak danawa," they are actively partying or having a blast. It’s the Sri Lankan equivalent of "good times."