Boost Mobile is a wireless telecommunications carrier founded in 2000. In New Zealand and Austrailia before opening operations in the US in 2001. The service was marketed significantly towards urban minorities often using slang, as heard in the slogan of "Where you at?"
In the Aqua Teen Hunger Force episode "Boost Mobile," Master Shake befriends a sentient Boost Mobile phone and directly promotes the company. Continuing with the company's marketing towards an urban audience the episode featured a heavy use a slang and referenced the "Where you at?" slogan.