1. a person who writes or speaks in a dull, tedious manner
Usage: informal

Examples

• The lecturer was such a proser that half the audience fell asleep.
• Don’t be a proser when giving your presentation.
• She avoided him at parties because he was a notorious proser.
• The meeting dragged on because the chairman was a terrible proser.
• His reputation as a proser made people reluctant to attend his talks.