big ass

¹

[ big as ]

noun

, Slang: Vulgar.

1. an important, self-important, or influential person; a big shot:

   I prefer the freedom of a low-budget indie to working under the directives of a Hollywood big ass.

big-ass

²

[ big-as ]

adjective

, Slang: Vulgar.

1. having large buttocks:

   The article called him a lazy, big-assed has-been.

2. very large and impressive:

   a marina full of big-ass yachts.

3. outstanding for a specified quality:

   a big-ass liar; another big-ass blockbuster.

4. important or self-important; influential:

   a big-ass attorney.

Word History and Origins

Origin of big ass¹

First recorded in 1940–45

Origin of big ass²

First recorded in 1945–50; the British variant was first recorded in 1810–15 big-ass fordef 1; and big-ass fordefs 2, 3, 4, in 1995–2000.