pwla is a "l33t" version of the word "pula" which is romanian for "cock"
It's used mainly on romanian chats that have a word-filter
Dute-n pwla mea!
or even just "pwla" when you disagree with something
Slobodna Dnevna e-pošta
Email-ovi se šalju sa email@example.com. Nikada vas nećemo spam-ovati.