Skele-TON of Jokes

Listen up, buttercup. This 'joke' hinges on a pun. See, a 'skeleton' is saying he knows a 'skele-TON' of jokes. 'Ton' sounds like 'tonne,' which is a unit of weight. It's like saying he knows a heavy amount of jokes, but, like, get it? He's a skeleton! You probably have a hard time lifting a tonne, don't you?