An acronym for Phone, Keys, Wallet: the 3 basic requirements necessary for any activity that involves leaving the sanctity of your own home.
After a grueling walk to the club in a drunken stupor, it was to our group's misfortune that i had left the most crucial part of PKW back at my house: my wallet.
One major prick. The kind of person that just makes you want to scream shut up you giant loser bastard and then punch them in the face.
That guy is a major PKW