How many Russians does it take to change a light bulb?
I don't know, they just keep Putin them in.
Alright, listen up, buttercup. This joke is playing on the name of a president, a dude named Putin, you might've heard of him. The joke is saying instead of "putting" in a lightbulb, these guys are "Putin" them in. Because they're Russian. Get it? I didn't think so, dummkopf.