Portmanteau of 'chainsaw' and 'dildo'.
A dildo mounted conveniently on a chainsaw body. When operated, the dildo twists and vibrated violently. for some, the ultimate pleasure, for others a reason to see their gyno.
Simple -- 1. A dildo in the shape of a chode 2. Some one you hate (Just to let everyone know, I myself invented this word at school in San Francisco during P.E.
Man, that Yishra girl is a real childo
Put the childo away, you fag!