Leif, recently, has taken to using expressions that surprise me a little. They really shouldn’t. He’s five, and he and all his absorbent, sponge-like wee peers throw terminology back and forth at a truly alarming velocity. For a while now, if something confuses him, surprises him, or amuses him in either of those aforementioned capacities, he’ll exclaim, “What the….?” He NEVER says anything in place of the ellipsis, though the vehemence with which he utters the phrase leads ME (yes, filthy minds) to think that what he’s omitting is completely scandalous.

An image of another member of the family captured this phrase perfectly in pictorial form:
Sometimes she doesn't even look REAL.

“WHAT THE…?” as Interpreted by Paisley.