Mo' Fucka is a shortened term for motherfucker. Simple as that. Most commonly used in ghetto places; by people who use exessive amounts of slang.
That stupid Mo' Fucka!
like hella good, only better.
That tray of brownies looks fucka good!
This term is simply taking the word mother and saying it in Spanish and adding the slang word for fucker at the end. This is obviously a spin off of mother fucker, but it is just a funnier way of saying it.
"What in the shit suck is happ'nin' madre' fucka?"
The greatest man ever to exist on this planet...Samuel L Jackson
Samuel L Jackson is one bad mutha fucka
If you can get laid at a sausage fest like MTU, you're one bad mutha fucka
Used at the end of a cook/base/fry/roast to say someone looks likes sum one. Same as "lookin ass"
You Osama bin Laden lookin mutha fucka.
You "I'm gonna pop some tags" lookin mutha fucka.
You "I cut my own hair" lookin mutha fucka.