Definition of 'slam-bang'
- violent and sudden and noisy; "a slam-bang collision"
- in a careless or reckless manner; "the shelves were put up slapdash"
- with heedless speed; "yachts ran slap-bang into the convoy at 15 knots an hour"
- in a violent or sudden or noisy manner; "the pans fell slam-bang and woke the whole house"