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1.
The action of stretching the scrotum over the asshole and passing gas.
In the moment of awkward silence I slowly stretched my sack and let out a violent farch.
by Seantar May 29, 2007
 
2.
farch \FAR-ch\, noun:

The combination of February and March.
"Do you remember back in Farch when the snow fell so lightly"
by acoupleofshoe June 17, 2008
 
3.
how your hair may be at the given time.
I just got my farch cut
by erik duchak November 21, 2006