попа in English:

The cause of the fire was his cigarette butt.

The goat butted the hiker with his horns.

Get your butt out of my face.

My butt hurts.

There are things I'd like to say but to butt in now would be what they call uncouth.

There's no need for you to butt in. Just let him do this on his own.

Hey, we're trying to have a serious discussion here so I'd appreciate it if you wouldn't butt in so irresponsibly.

Get off your butt and do something!

A butt by a ram is very painful.

I can lash my knife to the butt of one of the oars.

Spare me a butt.

Your ashtray is full of butts.

Push the butt

Don't throw butts on the ground

The one whose butt got burned has to sit on the blisters.

The pirates' booty was rather worthless

Come on babe let me see your booty.

The “Batphone”—for assignations, or booty calls—persists.

The massacre in Norway and the recent rebellion and the booty in England, are dreadful in consideration of the circumstances that the world drifted into.