For males, this is when you spin your cock around while you are ejaculating, or 'cumming'. You can also add whipped cream on the head for an 'awesome' affect. This term was created by Spunchbish from Ifunny.
"I did the fapping helicopter."
by SpunchbishLover69 March 3, 2021

by Napalm in the Morning April 13, 2014

The reverse helicopter is a sex move where a man balances on a woman with his dick inside of her, and spins around like a human beyblade.
"Did you see the new big booties 9? The actor Johnny twococks does a Reverse helicopter on this bitch, its wild man you gotta see it"
by Velvet Pimpson July 20, 2023

As Llandudno is in the top left of Wales, the Llandudno helicopter involves erotically spinning the left tit of your girlfriend, while trying to pronounce the name of that ridiculous train station into her foof.
“Ohhh butd, I gaave the Mrs. the old Llandudno Helicopter laas night! She took off like fuckin’ Cardiff Airport she did!”
by TheRealChaseFox September 30, 2023

by abblecraber December 6, 2022

An Eastern European sexual practice which involves a man lying on his back while his female partner performs this splits whilst they are having intercourse, the man begins to spin the woman by her legs (at approx. 1278.3696 RPM) until the mans assistance is no longer required. This act is a gymnastic feat performed by only top professionals. It has a 98% mortality rate. There have only been four recorded occasions in which the act has resulted in no fatalities.
Guy 1: "I got to go to the doc's later"
Guy 2: "Why"
Guy 1: "Me and my girlfriend tried to do a Russian Helicopter"
Guy 2: "Ah, what injuries did you sustain"
Guy 1: "Well she died in a state of extreme pleasure and my dick fell off"
Guy 2: "Well that is to be expected"
Guy 1: "Yup... Nice Gilet"
Guy 2 "Cheers, man!"
Guy 2: "Why"
Guy 1: "Me and my girlfriend tried to do a Russian Helicopter"
Guy 2: "Ah, what injuries did you sustain"
Guy 1: "Well she died in a state of extreme pleasure and my dick fell off"
Guy 2: "Well that is to be expected"
Guy 1: "Yup... Nice Gilet"
Guy 2 "Cheers, man!"
by TheMightyGustaf March 1, 2011

When a guys penis is soo small that's it just foreskin there and it spins uncontrollably while he is pissing.
"hey dude you should have seen my piss earlier, it went everywhere in a full circle, I was a fucking attack helicopter"
by TiP August 30, 2016
