Gig Mature Asses -

: A common intensifier meaning very large or impressive. 3. Adult Media

: Often used to describe a "mature" or fully grown adult (e.g., "grown-ass man" or "grown-ass woman"). gig mature asses

The phrase "gig mature asses" does not appear to be a standard title for a movie, book, or mainstream entertainment product. Based on common slang and related media search results, it likely refers to one of the following contexts: 1. Music & Concert ("Gig") Reviews : A common intensifier meaning very large or impressive