friend 1: "Until I'm done taking this medication my doctor says I should stop having sex"
friend 2: "Shouldn't be a problem for you"
friend 1: "So last night meant nothing to you?"
friend 3: "You got a Kamikaze burn"
noun. A bout of masturbation conducted purely for practical reasons. It can be enjoyed, but that is not its purpose. It is done solely to necessarily relieve high stress, drain one's blue balls, or because the next opportunity to have one off the wrist could be far into the future.
"Yo, what took you so long?"
"Sorry, I've got dinner with my girlfriend's parents tonight, then we're all staying at this place with paper-thin walls and we can't bang later, so I had to have a quick business wank."