Okay. So it's not a word. That's fine. The popular expression in this context is indeed "gottem" and it doesn't matter if you think that's a word or not, that's just objective reality. Suck it, nerd.

holy shit.

you might be the biggest fucking nerd ever for being so thoroughly "em" who just got "gott"

hahaha gottem

(no but seriously dictionaries are descriptive not prescriptive; they add new words as the language evolves. if you were correct about new implementation of the language being "bowel movements from ignorant people" then you should be speaking Shakespearean English as that is Proper English™. the language wasn't finished changing when you stopped going to school, pal. I'd recommend you research linguistics as it seems you have a weak grasp on the concept and it's bringing your nerd card into question.)

Gottem.

Talk to a linguist about how languages evolve.

Gotcha addresses the person you're talking to, gottem is used to address a real or fictional audience, highlighting for them what you did.