Definitions

1. noun

a person who attends a party, etc., and causes trouble, often by being rowdy or drunk

“The party was ruined by a group of crashers who started a fight.”

2. noun

an aircraft or spacecraft that crashes

“The crasher of the F-16 fighter jet was a major accident.”

3. verb

to crash (an event, party, etc.)

“We crashed the party and had a great time.”

4. noun

a program or process that fails or crashes, especially on a computer

“The crasher was caused by a software bug.”