1. slam-bang

violent and sudden and noisy

Example Sentences:
'a slam-bang collision'

2. slam-bang, slapdash

in a careless or reckless manner

Example Sentences:
'the shelves were put up slapdash'

• slapdash

3. slam-bang

with heedless speed

Example Sentences:
'yachts ran slap-bang into the convoy at 15 knots an hour'

4. slam-bang, slap-bang

in a violent or sudden or noisy manner

Example Sentences:
'the pans fell slam-bang and woke the whole house'

• slap-bang