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