As a Noun: 1. Behaviour which is strange or foolish, for example because of mental illness or intoxication. English = craziness. 2. Behaviour which is strange or foolish because of a lack of attention or care; the situation of having a lack of attention, as if thinking of something else. English = recklessness, carelessness; dreaminess. 3. A time during which you amuse yourself, especially by behaving in a careless or reckless way. 4. A time during which you amuse yourself, usually behaving in a careless or reckless way, especially when intoxicated or on drugs. As a Verb or Adjective: 1. To behave in a strange or foolish way, for example because of mental illness or intoxication. English = crazy. Idiomatic English = (be) out of one's mind. 2. To behave in a strange or foolish way, for example because of lack of attention or care. English = (be) reckless, (be) careless, (be) dreamy. 3. To enjoy yourself or amuse yourself, especially by behaving in a careless or reckless way. Idiomatic English = have a wild time. 4. To enjoy yourself or amuse yourself, usually by behaving in a careless or reckless way, especially when on drugs. English = (be) intoxicated. Idiomatic English = (be) off one's face.