trigger-happy

Adjective trigger-happy has 2 senses

• trigger-happy(s = adj.all) - irresponsible in the use of firearms;
• trigger-happy(s = adj.all) fierce, tearing, vehement, violent - marked by extreme intensity of emotions or convictions; inclined to react violently; fervid; "fierce loyalty"; "in a tearing rage"; "vehement dislike"; "violent passions"