Definition from Wiktionary, the free dictionary
Twinkie (plural Twinkies)
- (countable) A yellow cake which has a white, creamy filling and known for its artificiality and supposedly long shelf life.
- (countable, US, derogatory, slang, ethnic slur) An Asian person who dresses, acts and speaks according to Caucasian stereotypes rather than Asian ones (from the "yellow" outside and "white" inside; compare Oreo (“Black person who acts white”)).
- In the film Harold and Kumar Go to White Castle, Harold says that his Korean friend would call him a twinkie – “Yellow on the outside, white on the inside”.