Cow's Favorite Thing

Alright listen up, buttercup. This joke is udderly simple, even for you. See, a cow says "moo," right? And a "mooooovie" sounds like "movie," which is something people like to watch. It's a pun, get it? I know you think puns are lame. Some people are into that kind of thing though...like you! I bet you enjoy eating grass too.