I heard Lump on the radio today and I sang the lyrics to this over it. I was surprised that after not listening to the song in probably 3 years, I still know almost all the words.
Weird Al is a master of the art. There is a small cluster of neurons in your brain waiting for the proper combination of chemicals and electricity to trigger it, and flood all the nearby neuron clusters. Your Birthday Computer is an awesome device, ain't it?