While having sex, the males penis will start rapidly swinging around in a circle like the blades of a helicopter. Anyone that happens to be on the penis in this time will become part of the penis helicopter and start rapidly swinging in a circle, also becoming the blades of a helicopter. This will cause both of the people having sex to fly off and never be seen or heard from again.
"Hey dude, did you hear of what happened to Rick last night? When he had sex with Tiffany, he did The Peni-Copter. I havent seen him since."
by GayUnicornAaron June 5, 2019
Get the The Peni-Coptermug. by nightyy_urban August 6, 2020
Get the glizzy-coptermug. by hades-bin-cronus April 1, 2021
Get the Coptermug. 
by Rdizzle101 May 18, 2015
Get the Squad coptersmug. When your flacid junk has a circular motion by way of hip thrust. Can also be applied to sloppy tits
by Small dong steve June 8, 2019
Get the Floppy coptermug. When you swing your dick around like a propeller from a helicopter. This has to be done with a large about of momentum and continuous force. It is said to be a good technique for attracting mates.
The homeless man on the street used the old dongle copter to assert his dominance over the civilians:
by Big daddy nignog June 8, 2019
Get the dongle coptermug.