The word "glitcher" refers to a person who intentionally causes a malfunction or disruption in technological devices or systems. However, there are several synonyms for this word that can be used interchangeably. One such synonym is "hacker", which has a more technical connotation to it and refers to someone who uses their programming skills to gain unauthorized access to systems. Another synonym for glitcher is "saboteur", which refers to a person who intentionally causes damage or destruction to a system, organization or project. Other synonyms for "glitcher" include "disrupter", "troublemaker", "malicious actor", "cracker", "vandal", and "mischief-maker". All these terms refer to individuals who cause problems deliberately and with malicious intent.