1.) A waitress that has worked there way too long. She is missing a finger, a tooth, or maybe she has a 6th toe. In any case she's freaking tired and does not take any of your crap.
2.) One of the following non-conformists:
"To be a non-conformist, you have to dress in black, and listen to the same music we do."
a.) Goth kids. Black attire, hopped up on caffeine writing bad gothic poetry (i.e. "If a drop of blood would make you smile I would slash my wrists till I expired in a crimson puddle of my wasted love")
b.) Wiccan kids. Not to be confused with Goth kids. They wear black too, but lean more toward the caped Halloween look. They must have bumper stickers on their car that read something like "My other car is a broomstick". They know magik so you better not mess with them.
c.) Emo kids. You will either have the tolerable ones who actually know something about music, or the lame ones that just discovered the fad out of Seventeen magazine. Availability varies by location. Dashboard anyone?
3.) The bitter kid that makes fun of those people in #2. This can be damn funny.
4.) The creepy midnight...
Okay a Denny is a term used for a severe and rare condition to do with your penis in the process of ejaculation. It normally occurs halveway through a hand/blow job or even intercourse. Just before the climax of ejaculation your nerves in your brain can trigger of a chemical and endothermic reaction whic basically makes your cum freeze. Now seeing as the cum freezes whilst it's going through your penis, your penis freezes or gets remarkably cold. Resulting in your erection shrivelling to a very small size, smaller than what it would normally be. The new size of your penis is basically a chode. This is before you ejaculate and this process can take up to four - twelve seconds, depending on different circumstances. I've heard cases of it only taking about two or three to go from big stiffy to the smallest thing he's ever seen.
As you could imagine, halveway through a blow job, that would be very embarrising, but what's more, about 12-17 seconds afterwards, (by this time your partner would of walked off) you go back to your normal size penis and ejaculate manically. Everything you have cums out; literally.
Now the thing is with having a denny, is that it could happen to anyone, at anytime, it's phycological. The more you think about having one, the more you will. It's most likely to affect virgins having sex for the first time, or whenever they first have any sexual experiance, see...