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1.
Tarfun: Things Are Really Fucked Up Now.
Fubar: Fucked Up Beyond All Recognition.
See SNAFU for further information.

Tarfun + Fubar = Tarfubarn
Tarfubarn: Things Are Really Fucked Up Beyond All Recognition Now.

Happens if you think the worst possible already happened, but then it gets even worse.
'The day started out SNAFU, but then my machine went TARFUN, the whole place was really FUBAR after that and finally I got fired.'

*sigh*

'Additionally my girlfriend broke up with me in the evening.

Man, my whole life went TARFUBARN in just one fucked up day!'
by Dr.ScroTus June 27, 2010