The Sunderland boss, who has since apologised, took exception to being asked if he was under more pressure with club chairman Ellis Short in the stands for his side's 0-0 draw with Burnley last month.
BBC reporter Vicki Sparks was then told by Moyes: 'It was getting a wee bit naughty at the end there so just watch yourself. You still might get a slap even though you're a woman.' He then went one step further and added: 'Careful the next time you come in.'