Tommy Chong Biography

Thomas "Tommy" B. Kin Chong (born May 24, 1938) is a Canadian comedian, actor and musician who is well-known for his stereotypical portrayals of hippie-era stoners. He is most widely known for his involvement in the marijuana-themed Cheech & Chong comedy movies with Cheech Marin, as well as playing the character Leo Chingkwake on Fox's That '70s Show. The terms Chonger (a large cannabis joint), Chonging or To chong (to smoke cannabis) are based on his last name.

Source: Wikipedia