What the...?

Okay, I admit it. Sometimes... alright! often, I am not good at keeping my mouth shut. Or, to be nice to myself, should I say, in holding back, my words that is. I can clearly recall a few times, when I was in the car, and somebody cut me off, or did something else stupid like that, and me saying: "What the?" Exactly that "what the?" just these two words... and of course, Mr. D. is in his car seat in the back. Umph! Couldn't hold it back, could you. And, oh so innocently him asking: "What's wrong mommy?" Oh nothing, Damian, don't worry.

Well, late last week, we were at home, and Damian says: "what the?" I must say, it was at an appropriate moment. At the right time (I don't remember what he was doing). So I calmly say: "Damian, that is inappropriate, I don't want you to say "what the" again."
And, Damian, oh so innocently replies: "But I didn't say the last word..."
What? What!! He knows that there's a last word, and that it's a bad word? How? When? Why? What? ... Who?
"Excuse me Damian"
"I said I didn't say the last word mommy..." (that innocent tone again!)
"It doesn't matter, I don't want you to say "what the", it's inappropriate (as you probably realised by now, we are learning what is appropriate, and what is not)...

Now I thought, he meant, I am not saying the last word, which is "h..l"... which is what I stop myself from saying, when I am saying "what the"... and then a colleague at work opened up my eyes to another possibility... what if he meant he is not saying: "What the f...k"
What? What!!!
Somebody salt me, I'm fainting...