gettin hit in the head with a bible with this one

What is that?

https://i.imgflip.com/944p3b.gif
Black bath bomb, it dissolves and colors the water around it

I reposted this in r/peterexplainsthejoke

What does it have to do with getting batpized tho

If you're getting baptized and suddenly the water turns black and fizzy they're gonna think you're demonic or somey

and then what

Do you expect a reward from pranks

rrrrrrrrrrrrr