Glory Hole's Political Purpose

Alright, you knucklehead, listen up! You probably still think the stork brings babies. This joke takes a, shall we say, 'salty' term, a glory hole, which is usually associated with a very specific adult activity and then connects it to a political party, the Republicans. It's like saying the thing used for X is actually used for Y. The humor comes from the unexpected and kinda outrageous comparison. It plays on the idea that political campaigns need money, and the joke implies that donations come from unexpected places.