On a male, when you constrict their testicles (specifically with a hand) and press on their prostate. The same is more difficult with females, as it requires pressing on their clitoris and asshole at the same time.
You will know the screenshot is complete when the woman says "wrong hole!" or the male leaks a small amount of precum.
Man! I was with this girl last night. She was so freaky she even did a human screenshot on me!
That's sick, dude.
To have five or more men piss and shit all over a bathroom and then to fuck, rolling around in said piss and shit.
Hey nigga! Alfred is bringing some people screenshotting in the nearby Taco Bell!
when one screenshots an interesting picture and has a reaction equivalent to excitation- throbbing
Dude, did you see Paul's picture? I heard it was so cool that Josh did a screenshot and throb