The act of forcing someone's face into poop.
Dancing Bear: Iron Penguin, LOOK!
*Dancing Bear forcefully shoves Iron Penguin's face into a pile of Eagle poop*
Dancing Bear: FACEPOOP!!!!!
Updating your Facebook status or profile with your mobile device while sitting on the toilet.
Hey Joe! "You were in the bathroom a long time. What were you doing?"
"I was facepooping."