Avast ye lubbers, today, thees finest of all days has been deemed National Talk Like a Pirate Day. So shove off and get talkin before I keelhaul ya and smear yer blood on me mizen mast as a warning for all ye who dare cross this way again.

Or for the 2004 version of a Pirate:
Heads up, today is National Talk Like a Pirate Day. So go talk like a pirate or I’ll spoof your mac address and hijack your wifi signal so I can browse the gnutella network from your windows machine.