Comedy has many sources. Insults, clever wordplay, logical disconnects and many more. One of the best is recognizability. These are jokes that play off a cross between “it’s funny because it’s true,” and “yeah, I’ve been there.”
Dick and fart jokes are so popular because they work. They work, not because they’re universal in appeal but because they are so universally recognizable. Everybody farts and most people either have or have had experience with a dick, so they’re themes that everyone can relate to. This also explains the prevalence of boob jokes out there.
I wouldn’t say that the use of fart jokes is lame, lowbrow or uneducated. I will say that it’s easy. Anyone can do it. That being said, not everyone does it well. In real life it’s funnier when your prim and proper boss farts during a meeting than when the guy that farts all, lets another fly. If a writer can creator characters that we the reader know like we know our own friends, and then has them get kicked in the jewels, the humor value goes up tenfold. For example “Joe farted on Larry’s head” is not as funny as “Daku farted on Zampzon’s head.”
I really enjoyed Kurtz’s recent storyline where Skull farts in Brent’s car, because I related to the characters and the situation, not just because someone farted. I’ve been there, I’ve done that. That’s what made it funny, that’s what made it great.
As usual, that’s just my take. What’s yours?