Outside of the Indonesian and culinary contexts, "Omek" has several other definitions:

(fingering/masturbation). In certain regional dialects, particularly in Malang (East Java), "Omek" is simply the word spelled backward.

: This is a standard universal superlative used globally and in Indonesia to mean "best," "highest rated," or "most popular." In this context, it modifies the search query to look for the highest-performing, most viral, or highest-rated content matching the preceding keywords.

In this context, it likely refers to clothing (a shirt or tank top) or is being used as a superlative ("the best"). Social Media Context & Risks