(adjective) The dregs of society. Young socially inept, often working class cunts that hang around outside spar asking for a spare fag or fighting each other.
Jit rat: "You got a spare fag moosh?"
Member of public: "Fuck off you little jit rat!"
Jit rat: "I'm gonna get my brother to chin you out moosh"
Member of public: "Fuck off you little jit rat!"
Jit rat: "I'm gonna get my brother to chin you out moosh"
by Ben Sears April 3, 2006