ringer / wringer [ˈrɪŋɜr]
ringer – n. – 1. one who sounds a bell or makes a similar sound; 2. an expert; 3. a person who substitutes one thing for another or an imposter; 4. a person who looks like another
wringer – n. – 1. extortioner, oppressor; 2. a person or implement that extracts fluids; 3. one who twists or distorts