definition of
slam-bang

[1] #1 slam-bang s. violent and sudden and noisy; "a slam-bang collision". wn

[2] #2 slam-bang r. [slapdash] in a careless or reckless manner; "the shelves were put up slapdash". wn

[3] #3 slam-bang r. with heedless speed; "yachts ran slap-bang into the convoy at 15 knots an hour". wn

[4] #4 slam-bang r. [slap-bang] in a violent or sudden or noisy manner; "the pans fell slam-bang and woke the whole house". wn