clambidextrous 

When a woman can use both hands to masturbate successfully.

Lilly wasn't worried about her hands cramping while pleasing herself. She's clambidextrous and uses both hands vigorously and equally.

clambidextrous by SwitchbladeMolly August 22, 2022

slambidextrous 

The ability to masturbate with either hand

being able to slam my ham with either hand makes me slambidextrous

slambidextrous by ungerwoo January 5, 2011

cumbidextrous 

When someone can masturbate using both hands

I'm cumbidextrous

cumbidextrous by Stoopidassname March 6, 2022