Fluke 

19 Nov 2010 21:44

fluke [ flook ]  noun 

Definition: accidental success: something surprising or unexpected that happens by accident ( informal )

transitive verb  (3rd person present singular flukes, present participle fluking, past and past participle fluked)

Definition: pot ball by accident: to make a successful shot by accident, especially in pool, billiards, or snooker

[Mid-19th century. Origin ?] Encarta®