Wordnet 3.0
ADVERB (2)
1. 
 directly or immediately; 
- Example: "it hit slap-bang in the middle"2. 
 in a violent or sudden or noisy manner; 
- Example: "the pans fell slam-bang and woke the whole house"[syn: slam-bang, slap-bang]
WordNet (r) 3.0 (2006):
slap-bang
    adv 1: directly or immediately; "it hit slap-bang in the middle"
    2: in a violent or sudden or noisy manner; "the pans fell slam-
       bang and woke the whole house" [syn: slam-bang, slap-
       bang]