A corrosive deathcake

[sanspoof]

Internet, I have a question. Why do people use this sort of construction (make-up)? Why is this even considered? What's wrong with 'make up'? I've seen this a lot, make-out, shut-up, set-up. It's like a verbing of a noun, only it STARTED as a verb. I can set up things. I can even set up a setup. I suspect that this is where it's coming from; people use the noun (setup, makeout (session?)) and forget that the original verb phrase was the cause of it.

I am also almost starting to think that 'should of' is cute, but it still bites at the back of my wordly pattern recogniser.