According to Webster's New Century Dictionary, copyright 2001, as well as Random House Webster's Concise Dictionary, copyright 1993,
Deck, n the floor of a ship, aircraft, bus or a bridge; a pack of playing cards; the turntable of a phonograph; the playing mechanism of a tape recorder; (sl) the ground, the floor. * vt to cover, to adorn.
The pronunciation in the English is known to be a variable, a reason why Yanks and Brits always have had difficulties in understanding each other. Not to forget, when you get Aussies there, or Irish or Scots...
And the dirty mind was where?