A term spawned from two previously immature
and overused insults 'your mum
' and 'your face
'. Although these two retorts were originally used by the illiterate
and mono-sylavic lesser-beings of british
culture the combining of the two has only recently been adopted by somewhat higher brow citizens.
Although used gramatically in much the same fashion
as both its parent phrases the use of 'Your mum
's face' is generally accepted to be a satirical take on modern chav culture.