A fantasy creature that tends to have sex with everything natural thus creating Night Elves, Wood Elves, Frost Elves and other such creations of rampant sexually activity with the things of the world.
That elf is having sex with the air to produce a Night Elf.
Wood Elf: Yes?
Tree: I'm pregnant.
Wood Elf: WHAT!? You stupid bitch! I thought you were on the pill!
Tree: I lied so I could get the child support.
I'm not even gonna go there with the Frost Elves. O.o