tìm từ bất kỳ, như là dirty sanchez:
 
1.
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.
viết bởi Simon Batt 13 Tháng một, 2005
 
2.
Someone who is "all there" in a mental sense but not necessarily in a physical one.
Steven Hawking is totally screwed on man.
viết bởi Simon Batt 12 Tháng một, 2005