Legends of the Dark Knight #195 (2005)
I don't think all the weird sound f/x counts as a joke. Or it isn't a very good one.
"Bat-shawng" doesn't even make sense as a noise. I don't see where the context was for it.
It's like this was poorly translated from a Japanese or European comic or something.
One Panel #191-194: April 1940's Headlines
55 minutes ago