Im guilty of this sometimes, even though I know it's 2 words! Im actually surprised that the English language hasn't added this shortening yet (albeit is my favourite mushed up word ).

*Separate - sep A RAT e*

I would like to add to this spelling list:
Words that end in 'ing' having an 'e' where no 'e' should be. Either you're horribly lazy, or you need to go back to primary school.