Someone who is "all there" in a mental sense but not necessarily in a physical one.
Steven Hawking is totally screwed on man.
作者 Simon Batt 2005年1月12日
Top Definition
Opposite to someone who has a screw loose i.e a bit dopey.
You obviously had your head screwed on while you were tackling that piece of coursework.
作者 Simon Batt 2005年1月13日



邮件由 发出。我们决不会发送垃圾邮件。