The helicopter is a very difficult (and awkward, don't forget awkward) but fulfilling sexual position. It is performed by the man who, while fully erect and inside the woman (... or whatever.), proceeds to turn his entire body in a circle around the woman. All the while turning his penis inside the woman's vagina (... or whatever.).

the act of rotating ones penis, thereby emulating that of the blades of a helicopter.

The act of pulling your dick out of your pants and twirling it around in public. Can be performed with or without hands.

The murderer of Kobe 😔👊

when you slap your penis round a womans face

A type of rotorcraft in which lift and thrust are supplied by one or more engine driven rotors

the helicopter is a crazy ass sex position that should only be attempted with supervision of highly trained experts of the sex art. unless you're the expert.
The male is suspended in air my a rope that should be quite comfortable or you may be rope burned in unpleasant areas. the man is then spun to speeds of atleast 60 rpm (a single rotation per second)
the female is then supposed to be laid on a table, stool, etc. the male is than lowered and inserted into the females vagina. the sex position is finished when:
1) The male orgasms
2) The female orgasms
3) The male vomits

CAUTION: if this act of pleasure has any error in the process you may be inaccurate and piledrive a hole right through her belly button.