slambang vs slap-bang

slambang

adv
  • With a slam and a bang; with noisy or headlong violence. 

verb
  • To go with a slam and a bang; go noisily. 

adj
  • Violent and noisy; unrestrained. 

slap-bang

adv
  • in a violent or sudden or noisy manner 

  • directly or immediately 

How often have the words slambang and slap-bang occurred in a corpus of books? (source: Google Ngram Viewer )