So two old drunks are at the bar, drunk. One, bored says, "hey I got an Idee, lets play 20 questions, whoever loses buys." "OK" says the other guy and says "think of something and I'll guess it in 20 questions." So the first drunk thinks and thinks..... hmmmmm what can I think of that he will never think of so I can get a free one? So with this motivation, his gears are turning and finally he comes up with something. I got it! Mule dick! He'll never think of mule dick....that whiskey is mine! So he says to the no.2 drunk, "OK ask your questions." So instead of asking if it's bigger than a bread box and all the other typical 20-question, questions, the second drunk calmly asks; "can you lick it? Kinda taken aback by the question, the first drunk says, "well yeah, I guess you can lick it." So the second drunk asks his second question, "is it mule dick"?