A more expressive version of "You're shit", employing the "aaaah" suffix made popular by Rhys Ifans in the movie "Twin Town". Often to be heard at UK soccer matches, hurled in derision at ineffective players.
Person 1: Hey you know how chicken tikka was made?
Person 2: No...
Person 1: It's 'Chicken THICC AAAH'
Person 2: So you've chosen death
*Person 1 was never to be heard again*