I have just watched the film "Finding 'Ohana". There is 1 scene in the film in which 2 boys are crawling on their knees one after another in a small tunnel (not sure "small tunnel" is a correct term).
The butt of the front boy happens to touch the face of the behind boy (see the picture)
And the behind boy says "Get your butt out of my face!" (see the script) and the front boy answers "Your face is in my butt!"
Those actors are bilingual, they can speak both English and Hawaiian.
I am asking why not say "Get your butt off my face!" or "Get your butt away from my face!" and "Your face is on my butt!".