When a group of people assembles in one place to investigate an occurrence or situation. Usually in the case of an emergency. Often heard over a public address system.
There was a disturbance in GJ's at the shopping mall so an announcement came over the PA broadcast "security mustergate GJ's".
A person who although has been medically declared fit but is obviously retarded. Will usually so no physical signs off mental illness.
I cant believe John Howard's bowling style, what a fucktard!!!!
I asked for a beer and the fucktard gave emu bitter.