| a gadget; dingus; thingumbob. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| hair trigger | |
| —n | |
| 1. | a trigger of a firearm that responds to very slight pressure |
| 2. | informal |
| a. any mechanism, reaction, etc, set in operation by slight provocation | |
| b. (as modifier): a hair-trigger temper | |