Rufus is the naked mole rat from the old disney show Kim Possible. He's Ron's sidekick and he eats a lot of mexican food. He says "Boo-Yah" a lot. Any american kid under the age of 10 should know what I'm talking about.
Ron Stoppable: Let's go get some nachos with extra cheeese!
Kim Possible: There's no time for that now ron, we have to go save the world!