1. a person who talks boastfully or at length without substance
Usage: somewhat archaic
2. a type of moth whose wingless females cannot fly
Usage: entomology

Examples

• The old vapourer at the tavern claimed he had fought in every major battle.
• Don’t listen to that vapourer – he’s all talk and no action.
• The vapourer moth is common in oak woodlands.
• Female vapourer moths lay their eggs on tree bark.
• He was known as a vapourer who exaggerated every story he told.
• The vapourer’s caterpillars feed on various deciduous trees.