A Hippo is heavy and a Zippo is a little lighter.
One is really heavy, the other is a little lighter.
A hippiepotamus
Because they're really good at it.
Nothing bananas can't talk.
A hippopottymouth
The patients are the ones that get better and get to go home.
Binary stars.
One is a bar room, and the other is a *BARROOM!*
I can get through a Jimmy Fallon joke without laughing.