A substitution for the phrase, "That's what she said". Inspired by the movie, Slumdog Millionaire. It can also be randomly used as an interjection within conversation.
by Moriarte December 28, 2009
Chai is tea. Wallah, or Walla, is a person who performs a specific task. So chaiwalla is a person who serves tea basically. It's regarded as an insult in the movie Slumdog Millionaire because a person who serves tea is considered to be a low class job.
by Robin105 June 23, 2014