Noun

1. A small screw-tipped tool for boring holes.
   • 1726, Jonathan Swift, Gulliver’s Travels

     The box was close on every side, with a little door for me to go in and out, and a few gimlet holes to let in air.

2. A cocktail, usually made with gin and lime juice.
   • 2001, General Hospital (TV soap opera, August 28)

     Yeah, a piece of advice — once you’re back in circulation, don’t keep topping off a lady’s vodka gimlet when she’s not looking.

Verb

1. To pierce or bore holes (as if using a gimlet).