nounTrademark ; British
A thin plastic or fibre sheath that is inserted into a hole in masonry in order to hold a screw.
- ‘The correct method is to drill a series of holes, insert Rawlplugs and screw in the vine ties tightly.’
Early 20th century from Rawlings (the name of the engineers who introduced it) + plug.
Are You Learning English? Here Are Our Top English Tips