1.1(of an action or operation) unmethodical; poorly thought out.
‘slap-happy surveying methods’
‘We believe there will be a downward spiral with this Government's policy, because it is a slap-happy, haphazard policy that is trying to bring in 45,000-plus people.’
‘Mr Tyler said: ‘Many Gulf veterans who have developed serious illnesses since have given us evidence of administration of vaccines which was at best slap-happy and at worst irresponsible.’’
‘With a slap-happy attitude to hygiene, and a proclivity towards being ‘influenced’ by others, the sign is traditionally associated with scabies, lice and skin infections caused by contamination.’
‘The band's slap-happy power chords now replaced by the real thing: minor A's and major G's, smoothed out under too many plinking piano leads.’
‘In an era of the steady, dour beat of half-court offenses and slap-happy defenses, this Carolina team sings a pretty nostalgic song.’
‘I would be deeply concerned if my very ability to exist in this country depended upon the slap-happy approach that has characterised Government IT projects to date.’
‘Community work has become a byword for slap-happy mismanagement of people's sentences.’