Source : Webster's Revised Unabridged Dictionary (1913)

Cheesy \Chees"y\, a.
   Having the nature, qualities, taste, form, consistency, or
   appearance of cheese.

Source : WordNet®

cheesy
     adj : of very poor quality [syn: {bum}, {cheap}, {chintzy}, {crummy},
            {punk}, {sleazy}, {tinny}]
     [also: {cheesiest}, {cheesier}]