get (one's) mitts on (something)
To acquire something or have something in one's possession. "Mitts" is a slang term for hands. I hear Johnny got his mitts on a bunch of new comic books—let's go check 'em out! We nearly got our mitts on the championship, but the referee disallowed our last goal.
get your mitts on
obtain possession of. informal Mitt , an abbreviation of mitten , is an informal term for a person's hand that dates back to the late 19th century.