Real Dictionary

gimlet
If you say that someone has gimlet eyes, you mean that they look at people or things very carefully, and seem to notice every detail.

gimlet in American English
a small boring tool with a handle at right angles to a shaft having at the other end a spiral, pointed cutting edge
to make a hole in with or as with a gimlet
adjective: able to penetrate or bore through
noun: a small tool for boring holes, consisting of a shaft with a pointed screw at one end and a handle perpendicular to the shaft at the other
transitive verb: to pierce with or as if with a gimlet

gimlet in British English
adjective: penetrating; piercing (esp in the phrase gimlet-eyed)
noun: a small hand tool consisting of a pointed spiral tip attached at right angles to a handle, used for boring small holes in wood
verb: to make holes in (wood) using a gimlet