informal <非正式>
1
- a sudden, usually temporary malfunction or irregularity of equipment（设备）突然失灵; 不规则运转（通常是暂时的）：
a draft version was lost in a computer glitch.
由于计算机突然出了故障, 因此草稿丢失了。
1.1
- an unexpected setback in a plan（计划受到的）意外挫折：
this has been the first real glitch they've encountered in a three months' tour.
在这次为期三个月的旅行中, 这还是他们第一次遇到真正的挫折。
1.2
- Astronomy a brief irregularity in the rotation of a pulsar【天文】（脉冲星）自转突变。
no obj.
- chiefly US suffer a sudden malfunction or irregularity〈主美〉突然失灵; 不规则地运转：
her job involves troubleshooting when systems glitch.
她的工作就是在系统失灵时进行检修。
词源
1960s (originally US)： of unknown origin. The original sense was 'a sudden surge of current', hence 'malfunction, hitch' in astronautical slang.