A 'chav' from a part of the UK.
or what 'chavs' like to call each other or 'normal' people
Chav1 : "oh smeesh I was rat assed last night
Chav2 : " oh smeesh you gotta fag"
A word that can be used to mean anything dirty.
The cat and dog smeeshed on the couch.
Eww! You just got smeesh on my hand.