\r\n1.something really [cool].2.used to express joy in something/someone.3.to express that something is really or very good.\r\n\r\n\n> 1. Yo man this rollercoaster in the shiznit!\n> 2. Dang i can't believe you stood up to that bully! you're the shiznit!\n> 3. This pizza is the shiznit.\n> see also [the shit].\n