1. A vagina rotational movement similar to Helicockter, but in female version.

It is usually used as counter attack to Helicockter.

When the penis rotates inside the vagina clockwise, the female counter attacks it by rotating the vagina anti-clockwise, and vice versa, so the penis will twist and bend to one side and lose its proper functional at the moment. *But in some cases, overly thrust and followed by quick sudden rotational may cause its dysfunctional permanently.

In worst cases, It may cause a broken bone and/or inability of the males to effect sexual reproduction.

2. A circle-swinging vagina movement that most women do after shower, usually intended to dry the external and internal area from water to avoid vaginal wet mount (vaginal smear).
Example 1:

"How was your night, John?"

"Shit, man, she attacked me back." (John limps to the refrigerator to get some ice cubes)

Example 2:

"I want to marry and have some kids from you, baby."

"No way." (helicunter engages)

*crack*

Example 3:

"Jenny, are you sure he has condoms for tonight? He doesn't even have a bright future!"

"Who need condoms when we have helicunter?"
by ThisIsTheReality March 7, 2014
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