1. Plural of piehole; openings in a pie crust through which steam escapes during baking.
Usage: culinary; literal sense
2. Plural of piehole; a person's mouth (used informally or rudely).
Usage: informal; slang; often used in the phrase 'shut your piehole'

Examples

• The baker cut several pieholes in the top crust to let steam escape.
• Make sure to poke pieholes in your pie before baking it.
• Shut your piehole and listen to what I'm saying.
• He told his brother to close his piehole during the movie.
• The recipe called for three pieholes arranged in a triangle pattern.