Stretching your scrotum and balls over a person's face, and laying your penis on their forehead, resembling a flying squirrel with its arms spread. Done properly, this will cover the person's mouth and nose completely. To create a good suction, make sure your balls are warm before proceeding. Injury can occur if the person was sleeping and wakes up being suffocated by your massive nuts and sac.

The "flying squirrel" is: grabbing ones testicle bag with the tips of ones fingers (both hands), and stretching the skin into the opposite dirrections. This should resemble a flying squirrel. Your "flying squirrel" is best displayed for people when tightly pressed against a glass window or door typically found in computer labs or a lobby of a public building where there is lots of glass pannels.

The species threshold above which a veterinarian will likely interrupt imminent sex to answer an emergency call. The first known example was documented in 1977 at Cold Spring Harbor Laboratory when the attending veterinarian answered a call about a flying squirrel just as things were "getting going."

Species above the flying squirrel line could include macaques, bald eagles, canines, ducks, voles, baby robins, and, of course, flying squirrels. Species likely below the flying squirrel line include danio rerio, xenopus laevis, and drosophila melanogaster.

Sex position, when the female in on her stomach while holding her ankles with her knees fully bent. The Male holds her knees up while spreading her legs, to hit it from the back.

Sexual act where a man is engaging in sexual intercourse in the doggy-style position and shifts his weight on top of his partner, while keeping his penis inserted, to the point of where he is balancing on top of her with arms and legs out-stretched (not touching the ground or holding on to anything) but is still able to pump.

you perform a flying squirrel by stretching out your scrotum upwards over your penis, and just let the head of your penis show. you pinch the bottom of the scrotum on either side with your thumbs and forefingers (carefully, please!) and pull it upwards. Your balls form the squirrel's back legs, and your pinched ends form the front legs. The membrane of your scrotum resembles the flaps of the majestic flying squirrel. The head of the penis is the head of the squirrel, of course.!

Essentially, the "rick roll" of sex positions. It is done from the missionary position, although can be managed from doggy style, by extending arms and legs outward in the position of a flying squirrel or a skydiver. Upon doing the "flying squirrel" you must scream "FLYING SQUIRREL" while balancing on your mate. This has been known to stop sex immediately, ruining all chances of a climax.