What's a "dry sense of humor?"?
https://answers.yahoo.com/question/index?qid=20070625210157AABIvfj
Dry humor is not bad and it most definetly is funny. It's not for people without enough brain power like the other answerer though. It's Bevis and Butthead for those guys. Most humor that adults enjoy, the ones that score over a thousand on their SAT's like dry homor. Most political humor is dry. Jerry Seinfeld used mostly dry humor in his stand up routiens.
Dry Humor sample:
A Cowboy And His Bible
The devout cowboy lost his favorite Bible while he was mending fences out on the range.
Three weeks later, a cow walked up to him carrying the Bible in its mouth. The cowboy couldn't believe his eyes. He took the precious book out of the cow's mouth, raised his eyes heavenward and exclaimed, "It's a miracle!"
"Not really," said the cow. "Your name is written inside the cover."
It's hard to define. But the best way I found is this:
Dry humor: marked by matter-of-fact (or indifferent in manner), ironic, sarcastic, or terse manner of expression.
It could be a bad thing for some. Personally, I like that kind of humor.