"ruffian," 1856, originally in Baltimore, Maryland, from plug (n.), American English slang name for the stovepipe hats then popular among young men, + ugly.
实用例句
1. A plug had been inserted in the drill hole.
钻孔已塞上了塞子。来自柯林斯例句
2. Make sure the draining board, sink and plug hole are regularly disinfected.
滴水板、水槽和塞孔一定要定期消毒。来自柯林斯例句
3. The banks have the power to pull the plug on the project.
银行有能力让该工程终止。来自柯林斯例句
4. The wire snapped at the wall plug and the light fused.
墙上插座的电线短路烧断了保险丝，电灯跟着灭了。来自柯林斯例句
5. It is possible to plug into remote databases to pick up information.
