pop rivetDefinition of pop rivet noun a tubular rivet that is inserted into a hole and clinched by the withdrawing of a central rod, used where only one side of the work is accessible. verb (pop-rivet) (pop-rivets, pop-riveting, pop-riveted) [with object] secure or fasten with pop rivets: (as noun pop riveting)pop-riveting does not require the use of a hammerpop rivet in other Oxford dictionaries Definition of pop rivet in the US English dictionary