Vore fans are squirming in their seats.

Damn, how is Oak still alive

Snakes digest very slowly. I imagine he made the thing burst open by pulling a bike out of his pocket and riding it indoors.

My vote is on using a pokeball from its stomach and making the thing turn inside out as a result.

If you’re in a pokemon that is sent to a pokeball, do you get trapped in the pokeball?
It’s not like pokemon leave behind a pile of undigested food.