"Big Bird Writes a Poem" is a Sesame Street audio sketch.
Big Bird has been cleaning out his nest, and he finds a book of poems that he has written. One of them is called, "My Friend", but the last line isn't finished, so he can't tell who it's about. He knows the person's name has to rhyme with "more muscle than a bus", but he can't think of anybody he knows whose name would fit. Then Mr. Snuffleupagus comes by. Big Bird reads him the poem, but he can't figure out who it's about either, so he goes home to take a nap. Big Bird decides to start a new poem about Mr. Snuffleupagus, but he can't think of anything that rhymes with his name. Then Herbert Birdsfoot comes by, so Big Bird asks him if he knows any words that rhyme with Snuffleupagus. Herbert replies, "How about, 'Muscle than a bus'?"