slam-bang vs slap-bang

slam-bang

adv

  • Shot or hit with a noise 

noun

  • Noisy activity. 

adj

  • Violent, forceful 

  • Impressive, exciting. 

  • Noisy, raucous. 

slap-bang

adv

  • in a violent or sudden or noisy manner 

  • directly or immediately 

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