The Swiss Army knife of Sri Lankan slang. On its own, calling something Patta means it is absolutely top-tier, amazing, or really good. However, it also acts as an extreme intensifier, the Sri Lankan equivalent of saying something is "crazy" or "hella" whatever comes next. You can use it to amplify the good (Patta lassanai - very beautiful) or exaggerate the struggle (Patta mahansi - very tired). It just makes everything more.