Ambiwhacker 

Someone who masturbates with both hands

Kyle said he doesn’t want uneven arms so he became an ambiwhacker.

Ambiwhacker by Briggsy420 April 8, 2019

Ambiwacker

The ability to masterbate with your left or right hand at any givin time.

Richard: Both my arms are so tired from milkin the lizard.
Cameron: Both your arms are tired?
Richard: I'm an ambiwacker, I use both...

Ambiwacker by Thug Nasty (Lord Of Pimping) January 18, 2008

Ambiwankerous 

A talented masturbator who is able to use the right and left hands equally well while rubbing one out or flicking the bean.

As a teenager, Roger quickly learned he was ambiwankerous. He was able to toss off with no proclivity for either hand.

Raina spent the entire day on the couch watching Lifetime and flicking her bean. Her ambiwankerous abilities left her engorged and satiated and the couch soaked in squirt.

Ambiwankerous by Dick Onchin November 18, 2021