cracker in Polish

A dry, thin, crispy baked bread (usually salty or savoury, but sometimes sweet, as in the case of graham crackers and animal crackers).

(computing) One who cracks (i.e. overcomes) computer software or security restrictions.

(US, derogatory, racial slur, offensive) An impoverished white person from the southeastern United States, originally associated with Georgia and parts of Florida; (by extension) any white person (slang).