slam-bang
Meanings
- 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"