It is a trade secret that I share only
with the gentlemen that come and
see me personally.

While I don't know, I can offer the following -- while in an acquarium viewing the penguin display, I saw workers in the display area with the penguins.  They were wearing high rubber boots, what looked like raincoats, and eye protection -- much like in a machine shop or at a shooting range.  I asked one of them, after they emerged, why the eye protection.  She responded that penguins love to fling their feces at the workers.

Makes me wonder what a "penguin" is!

This dude is walking down the street and he's really horny, so he goes to the first whore house he sees.  When he tells them that he only has five dollars, they throw him out, ass-over-elbows.  "Get outta here, you putz!"

The guy then goes into another one, and the same thing happens.  And so it continues...yada yada yada...five bucks...ass-over-elbows..."Get outta here, you putz!"

By this time, he's super horny. When he gets to the next whore house he confesses, "Look I'm super horny and want a lil' sum-sum, but I've only got five bucks.  Help a brutha out!"

The doorman says, "Alright, alright.  Putz.  For five dollars we can give you a penguin."

"What's a penguin?"

The doorman smiles, takes the dude's money and says, "You'll see."  The doorman leads him to a bedroom.  Dude unzips, whips it out, and waits for his 'penguin'.

Enter mega-hottie provider, who starts giving the dude a super-wet, wild, furious BBBJ.  The dude is in heaven and is about to explode, when all of a sudden, she stops, mid-bob, and walks away...

The dude, pants still at his ankles, flapping his arms about,  waddles after her and shouts, "HEY!!! WHAT'S A PENGUIN???"