Search Result for "switcheroo": 
Wordnet 3.0

NOUN (1)

1. a sudden unexpected switch; 



The Collaborative International Dictionary of English v.0.48:

switcheroo \switch"er*oo\ n.
   a sudden and unexpected change or reversal of position,
   attitude, or action.
   [PJC]


WordNet (r) 3.0 (2006):

switcheroo
    n 1: a sudden unexpected switch