Combination of faux and fucking which means simulating the act of having sex. Pronounced "faux king".
"George was faucking John last night--he kept on humping his leg". Or, "I was getting a lapdance from some girl at the bar and she started faucking me."
Like its four letter cousin but much more jocular, for use in non-serious but very annoying circumstances.
I just spilt coffee all over my keyboard, fell off my chair into a puddle of catsick and accidentally sent the text to my boss I was just writing to get out some feelings; fauuck. :(