Gate crashers, also known as party crashers, are individuals who attend events or parties without being invited. Other synonyms for gate crashers include uninvited guests, interlopers, uninvited visitors, and trespassers. These individuals often arrive unannounced and can cause havoc by disrupting the party's atmosphere. Some may even engage in destructive behavior, such as damaging property or stealing items. Organizers of events take various measures to prevent gate crashers from ruining an event, including hiring security personnel, issuing invitations with unique codes, and monitoring the entrances. Despite these measures, gate crashers remain a persistent problem at events and parties.