Likturbator

Someone who likes their own Instagram or Facebook posts. Usually a desperate and needy attention seeker.

Susan just liked her own damn Instagram post. Hahahaha that’s so sad. She’s a likturbator.

Likturbator by TruKilla May 21, 2018

Lefturbator 

One who masturbates using only the left hand.

Joe: "Dude, Eli's left arm is so strong--how'd he do it?"
Mike: "Didn't you know? He's a lefturbator."

Lefturbator by A Righty January 6, 2008