Every time you come across 'what the-?' in a comic, stop, make a mental note of it, and laugh.
A friend of mine; every time we come across one, we take a picture and text it to each other.
You'll be amazed at how many you come across. Some times, I take it to be a form of bad writing. It's such a bizarre, half finished statement, once you start to track it.
PAD does it quite a lot in Spider-man 2099. Alot. Floored me, actually.
Now, I won't say do a shot, but maybe come back here and note how many you found in your last reading experience.