From the Christmas staple "Sleighride":

Outside the snow is falling and friends are calling "Yoohoo!"

But of course! I call "Yoohoo!" at least three or four times a day! More often than that if there's a sleigh somehwere nearby! What's the deal? Whoever wrote the thing couldn't afford a rhyming dictionary? Aren't there about 10,000 words in the English language that would make a more sensible rhyme for "you" than "yoohoo"?

But, at least he didn't totally cop out like Alice Cooper did in "School's Out":

...and we got no principals
and we can't even think of a word that rhymes!
School's out for summer...