What is Shut It Up?
usually said as 'shut up, shut it up' its harsher then just saying 'shut up' and much cooler sounding, also.
guy 1: 'youre a total n00b, man.
guy 2: 'shut up, shut it up! i could pwn you any day.
See shut up, halo, pwn, n00b, cool, jorsh