I’ve heard rumours around the Interblogs that there are people who’ve got issues telling arses from holes. Well, for those people I offer this convenient limerick to help them out in a fix:

If you’re having some trouble rememb’ring,
how to categ’rize each type of hole:
The black ones will suck,
The arse ones will blow,
So keep them both back with a pole!

I know it’s a little high-brow considering the subject matter, but desparate times call for desparate poetry.