Contraction of "pr0n" and the french word "poney" (pony).
Can be used as an adjective either to describe small horses having
sexual intercourse, or something that seems cute but you find
disturbing.
Two people are in a barn :
"- Hey look, these two ponies are
getting laid !
- Gross !! Dude,
you know I hate pr0ney !"
"- Hey Barry, see how my
kitty licks itself. He's SOOOO cute when he does that !
- Mhhh, that's kinda pr0ney though..."