Okay, Youve probably heard of this. This Is In My Pants. What YOu DO Is Take The Name Of a song and put "In My Pants" at the end of it.
Ex:
That Time In My Pants (By Regina Spektor)
Stupid Girl In My Pants (By Garbage)
You Want In My Pants (By Porcelain And The Tramps)

See? Hilarious, no?
Have Fun!!!!!