Rawlplug
/ˈrɔːlplʌg/noun
- Brit. trademark a thin plastic or fibre sheath that is inserted into a hole in masonry in order to hold a screw〈英, 商标〉罗威套管, 罗威纤维管（一种薄塑料或纤维套, 嵌入砖石上的孔内, 以便能抓紧螺丝钉）。
词源
early 20th cent.: from Rawlings (the name of the engineers who introduced it) + PLUG.