crasher
🇺🇸
/ˈkræʃər/
🇬🇧
/ˈkræʃə(r)/
A person who attends an event without being invited.
The wedding was ruined by a group of crashers who arrived uninvited and caused chaos.
婚礼被一群不请自来、制造混乱的闯入者毁了。