Definition of dicky adjective from the Oxford Advanced Learner's Dictionary

 

dicky

 adjective
adjective
BrE BrE//ˈdɪki//
 
; NAmE NAmE//ˈdɪki//
 
 
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(old-fashioned, British English, informal) not healthy; not working correctly a dicky heart Word Origin late 18th cent. (in the sense ‘almost over’): perhaps from the given name Dick, in the old saying as queer as Dick's hatband.