I’m very sure they do not have a stomach inside

Do the Mario!
Swing your arms, from side to side
Come on! Its time to go do the Mario!
Take one step, and then again
Lets do the Mario! All together now!
You got it!
Its the Mario!
Do the Mario!
Swing your arms, from side to side
Come on! Its time to go do the Mario!
Take one step, and then again
Lets do the Mario! All together now!
Come on now!
Just like that

Drinking oil

you are either confused or VERY dirty-minded.

Yes I’m very confused

good to know!

You've gone really really deep and I don't really want to explain it. Simply put, besides speaking, they would use it to "eat" and "drink," since they basically began to mimic humans after they were all wiped out.

Think about it. The hair, the jobs, phones, books, schools, nurses, the f*cking punch bowl at the prom - I think they're all just living in denial of the fact that they're robots.