A means by which a classy lady can maintain her sexual dignity by refraining from penile penetration yet still partaking in all other sexual activities.

A trick played on a fellow athlete where the open hand smacks the target's testicles with the knuckles in a sharp, wrist flicking motion.

Engaging in sexual experiences with another person and doing everything but penetration. Everything: making out, heavy petting, oral sex, etc.

Doing everything sexual EXCEPT sexual intercourse.

Someone who does a lot of every kind of drug but refrains from taking the infamously addictive and destructive drug, Heroin.
Someone who's does "Everything But" is usually proud or happy of the fact that they avoid Heroin; yet are clueless to how damaged they are from all of the other drugs they take. They live in blissful ignorance.