1. Someone who takes advantage of a glitch in a game's software to defeat an opponent.
2. One who executes the same move repeatedly in a video game in order to defeat an opponent or gain points etc.
3. Someone who repeatedly exploits a weakness in a system to their own usually massive advantage.
Riley is a great gamer, but he got stomped by that little glitch bitch he was playing.
The software is weak and open to exploit by any simple glitch bitch who comes along.
Mutual fund glitch bitches were purchasing stale funds after hours in order to make massive profits at the expense of ordinary investors.