1. as much as the stomach can hold; a large amount of food or drink consumed at one time
Usage: informal; chiefly Australian and New Zealand English
2. an amount of something that one can no longer tolerate; enough of something unpleasant
Usage: informal; chiefly Australian and New Zealand English

Examples

• After eating a gutful of pizza, he felt too full to move.
• She had a gutful of his excuses and decided to leave.
• The kids ate a gutful of ice cream at the party.
• I've had a gutful of waiting around for nothing.
• He drank a gutful of water after the long run.