slap-happy
/ˈslæpˌhæpɪ/adjective
informal <非正式>
1
- casual or flippant in a cheerful and often irresponsible way漫不经心的, 不负责任的：
he possessed sauntering slap-happy courage.
他具有漫不经心、闲混的胆量。
1.1
- (of an action or operation) unmethodical; poorly thought out（行为, 行动）无章法的; 欠考虑的：
slap-happy surveying methods.
考虑不周密的调查方法。
2
- dazed or stupefied from happiness or relief（因高兴或解脱而）头晕目眩的; 目瞪口呆的：
she's a bit slap-happy after such a narrow escape.
经过如此的死里逃生之后, 她感到有点头晕。