Swaffelcopfter 

Whenever you swaffel with your masculin object, and rotate it like a helicopter, this is what they call in urban legends "swaffelcopfter".

Hanz, stop swaffelcopftering my sister, she is currently not in the mood.

Swaffelcopfter by AJ Benza June 1, 2018

Swafflecopter

Similar to the act of 'swaffling', except the motion of the penis is of a circular orientation, such as that of the blades of a helicopter, rather than side-to-side.

Mate, Charlie gave Jan such a brutal swafflecopter last night, I could see the bruises this morning!

You're such a swafflecopter.

Swafflecopter by Cumnuggetz May 10, 2011