When someone takes a shit, and the log disappears down the hole, that's what they call a hole in one.

Long distance attemtp at sexual intercourse.

Launching yourself as high as possible while your female partner in laying on the bed in a spread eagle and hope for the best...

When a man inserts his Penis into a females vaginas and ejaculates in 1 second.

when a male does a girl anal and right before he bust he backs up to more then his dick length and tries to bust in her asshole

when you trow a small projectile object (gum wrapper, bits of food, ect.) into a girls cleavage when she is wearing a low-cut shirt

When a guy is getting a bj and right before nutting he pulls out, backs away and tries to make his load right in the chicks mouth. If he makes the shot without coming up short or going long then it's a hole in one.