look up any word, like sex:

1 definition by iamwifey

 
1.
the other woman; also known as the mistress; a female that is neither a male's wife or girlfriend who has relations with the male while he is in another relationship
Kimmy: Look at Tina and Josh...are they going out?
Sally: No Kimmy! Josh is dating Laura. Tina is just his sidechick.
by iamwifey January 17, 2007