Girls part:
I know a weenie man. He owns a hot dog stand. He sells most everything from hot dogs on down. One day I’ll change his life; I’ll be his weenie wife. Hot dog, I love that weenie man.

Boys sing the old Oscar Mayer Wiener jingle: 
Oh, I wish I were an Oscar Mayer Wiener (wiener),
That is what I'd truly like to be-ee-ee.
'Cause if I were an Oscar Mayer Wiener (wiener),
Everyone would be in love with me.

Do a couple of run throughs and then try to out sing each other (volume)