Definition from Wiktionary, the free dictionary
- (humorous, slang) Expressing fear.
- Yikes! A monster!
- (humorous, slang) Expressing empathy with unpleasant or undesirable circumstances.
- John has lost his job and can't pay his mortgage; yikes!
- (expressing fear): uh-oh, jeez
- (expressing unpleasant surprise): wow (Note: "Wow!" can also be used for a pleasant surprise)