From WordNet (r) 2.0 (August 2003) [wn]:
kiddy
n : a young child
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Kiddy \Kid"dy\, v. t.
To deceive; to outwit; to hoax. [Slang] --Dickens.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Kiddy \Kid"dy\, n.
A young fellow; formerly, a low thief. [Slang, Eng.]
[1913 Webster]