What is booyakasha?

Booyakasha is a catchphrase popularized by the British comedian Sacha Baron Cohen in his TV show "Da Ali G Show." The phrase is derived from Jamaican Patois and has various meanings, including "hello," "goodbye," or "wow, great!" It became a mainstream pop culture phenomenon in the early 2000s and is often associated with Cohen's character Ali G, a satirical portrayal of a stereotypical British "chav" who affects a Jamaican accent and mannerisms. The phrase has been used in various contexts and media, including in the 2006 film "Borat" and in the animated TV series "Teenage Mutant Ninja Turtles."