smack-thought

(n.)A phrase or a verbal insult to use against someone or something but never actually said to the person in context, occasionally used in anecdotes.

Guy1:So he told me to go to the office and i was like, no how about you go screw your mother you jackass.
Guy2:Wow, did you really say that?
Guy1:No it was just a smack-thought, but could you imagine?
Guy2.Lol