"Ode to Four Letter Words", a lovely song, at http://home.hawaii.rr.com/kingcharles/Humor/ode-4.htm

of which there are many variations. With reference to mod-god's particular ... er, "point", see verse 6, ending with the caution:
But, friend, heed this warning, beware the affront
Of aping a Saxon: don't call it a [expletive deleted].