Mucus.



Verse One:
mucus is this really cool stuff
you might consider it muck
sometimes it's yellow, sometimes it's white
spit it on me, you're looking for a fight

Chorus:
mucus is really cool
mucus is really neat
mucus is really cool
mucus!

Verse Two:
i wouldn't swallow it if i was you
because it tastes really gross
i dunno where it comes from
but it protects your mucus membranes

Chorus:
mucus is really cool
mucus is really neat
mucus is really cool
mucus!