Gajfn - A mean way to tell someone they should find a job instead of

A mean way to tell someone they should find a job instead of being a lazy, annoying waste of space.

He texted me 'Gajfn' after I skipped work again.

My friend said 'Gajfn' when I showed up to class in pajamas.

My mom said 'Gajfn' when I asked for more money for snacks.