-happy UK [hæpi] US suffix
used with some nouns to make adjectives meaning that someone is too willing to do or use something bad


(=too willing to shoot a gun)
Thesaurus: suffixeshyponym

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Used freely during and since the 1939–45 war as the second element in many combinations: a. In a dazed, nervous, or light-headed state as a result of excessive strain, e.g. by exposure to bombs (bomb-happy), anti-aircraft fire (flak-happy), the desert (sand-happy), etc. b. Acting in an irresponsible, obsessive, or precipitate manner, e.g. gadget-happy (= obsessed with the acquisition of gadgets), trigger-happy (= liable to shoot at anything at any time). Cf. also slap-happy.

Useful english dictionary. 2012.