In 6th grade sex ed we define sexual intercourse with proper terms and their accompanying, more often used, slang terms. This list is from one 6th grade class.
Proper term & Slang terms
Sexual intercourse = doing it, sex, the nasty, f-word, making love, making whoopie, putting his candy in her bowl, sweeping her chimney, getting funky
Kissing = making out, frenching, snogging (thank you Harry Potter)
Arousal = excited, horny, turned on, hot, randy
Erogenous zones = areas of the body wired for sexual arousal when stimulated
Erection = boner, hard-on, woody, stiffy, diving board, a johnson
Lubrication = she gets wet, she gets moist, surfs up
Virgin = someone who has not had sexual intercourse
Orgasm = the peak of sexual pleasure
Ejaculation = release of semen from the penis, to cum
Semen = white fluid and sperm, the pool and swimmers, cum
Sperm = the swimmers, dad's half
Egg = egg, mom's half
At the end of this discussion a boy asks,"You know how last week we talked about what oral sex was?"
"Well, does that mean that girls drink sperm?"
In his mind he is putting together oral sex, orgasm, ejaculation, semen and a mouth.
I answer, "May I refer to the person as a female or a male, woman or man? A girl to me is someone your age. OK?
"A female or male whose choice it is to perform oral sex also has a choice of what to do when semen comes out of the penis. They can let it fly across the room --", I say shooting my arm towards the back of the room.
The boys erupt with soaring noises and gestures.
I continue,"Or they can choose to let the semen come out in their mouth and spit it out - or swallow it."
Boys wince and make gagging noises.