Hmmm...not sure how racey is acceptable, but always found this one humorous. It's a "clean" dirty joke.
Middle of the forest stood a tall Birch tree. Next to it, a tall Beech tree. One day they notice a small tree starting to grow between the two of them.
The Beech tree exclaims" Now that is the finest looking Son of a Beech I ever did see"!!
The Birch tree disputes by saying "No way, that is one fine Son of a Birch"!!
Back and forth they argue "Son of a Beech" - "Son of a Birch" - "Son of a Beech" - "Son of a Birch"
Eventually a Woodpecker landed on the Birch tree and the tree says " Mr. Woodpecker, could you be so kind as to settle a debate between us, I say the small tree below is a Son of a Birch, however my friend here says it is a son of a Beech. Could you please fly down there and find out which it is to settle this argument once and for all?"
The wood pecker gladly obliges. Several minutes later the Woodpecker returns. The Birch tree says" So Mr. Woodpecker, you have found it is a Son of a Birch, Riiigghhhttt???"
The Woodpecker says " What I found was that the tree is neither a Son of a Birch, nor a Son of a Beech....it is however the finest piece of Ash I have ever had my pecker in"!!!