http://www.bestcreatives.com/MadCow.html
Pg-13 ish 
An American tourist goes into a restaurant in Spain and orders the specialty of the house. When his dinner arrives, he asks the waiter what it is. “These, senor,” replied the waiter in broken English, “are the cojones, how you say, the testicles, of the bull killed in the ring today.” The tourist swallowed hard but tasted the dish and thought it was delicious. So he comes back the next evening and orders the same item. When it is served, he says to the waiter, “These cojones, or whatever you call them…are much smaller than the ones I had last night.” “Yes, senor,” replied the waiter, “You see…the bull, he does not always lose.”
Eh, you’re right. No good cow jokes.
Moo-chas gracias!!
DanielWinthrow: color me stupid, but I don’t get it. 
Can someone explain it to me? Please?
I don’t get it either, Daniel
Sun’s rays meet?
Focus…
::so confused::
Well, dammit, I find it intellectually satisfying! You got it, Gazelle: a triple pun in which each word is a different part of speech and fits together to make a different sentence.
I like it, anyway.
Daniel
Here’s mine. It’s a bit dated, as you might be able to tell from the subject matter.
So two cows are in a barn, eating hay, chatting.
“So, Bessie, I’ve been hearing there’s mad cow disease going around. It’s gotten me kind of nervous.”
“Really?”
“Yeah! You’re not nervous?”
“Nah. It doesn’t affect peguins.”
MOOO!
moo moo mooo moo moo?
MOOO!!!
In a thread explaining the origins of cow-orker, flodnak said:
Where do cows go for fun?
To the Mooooooooooooooooooooooovies!
HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA
A tractor salesman, having a slow day, was driving around the county. He stopped when he saw a farmer, who had a bull hitched up to a plow. The salesman rushed over and started his tractor pitch. The farmer told him he already had two fine tractors. “Then why are you plowing with a bull?” asked the perplexed salesman.
“I’m just trying to show this stupid hunk of beef that there’s more to farming than f<>king and tearing up fences.”
–Nott
From the song “Cows With Guns” by Dana Lyons:
What do you call a cow on a motorcycle?
Kawasaki.