1. An exclamation expressing annoyance, frustration, or disappointment at a mistake or mishap.
Usage: informal; popularized by the character Homer Simpson

1. The first note of the musical scale; also spelled 'do'.
Usage: music; variant spelling of 'do'

Examples

• Doh! I forgot my keys at home.
• She exclaimed 'Doh!' when she realized she had missed the deadline.
• In music class, we learned that doh is the first note of the scale.
• Doh, I can't believe I made that silly mistake.
• The singer hit the doh perfectly at the beginning of the song.
• He slapped his forehead and said 'Doh!' when he understood his error.