A combination of the words So and Much.
I'm pretty sure I invented this because I make this typo all the time while texting my SO.
We now use it on purpose all the time.
Chief of Operations who occasionally partakes in fucknuterie, but friends generally allow it due to his blatant disregard for other's response to his thrusts of homosexuality, which he imposes on most any "next man".
Son: Mother what is that guy doing to "next man"
Mother: Son don't point! You don't El Souch to violate your bum.
A person who enters your flat/house as a regular person and leaves an urban legend as they flee the scene of an alcohol induced 'accident' leaving your couch, floor, walls and somehow TV covered in shit!
Bringing a whole new meaning to the phrase couch surfing.
Don't invite Steve to the flatwarming party.... I'veheard he is a shoucher