To turn on the computer and watch porn. Originally indicating a peer to peer programme in Korea, this word came to have this meaning as the programe started to get infected with porn. This word is used almost exclusively by boys in their teens.
Jill: Hey, did you do the chemistry assignment?
Jack: No. I just went home and turned on my pruna.
Jill: Pruna? What's that?
Jack: Um.... it's just like Donkey.
Jack: No. I just went home and turned on my pruna.
Jill: Pruna? What's that?
Jack: Um.... it's just like Donkey.
by AznsRule December 10, 2006
by Anonymous February 12, 2003