slap Meaning, Definition & Usage

  1. noun a blow from a flat object (as an open hand)
    smack.
  2. noun the act of smacking something; a blow delivered with an open hand
    smacking; smack.
  3. verb hit with something flat, like a paddle or the open hand
    • The impatient teacher slapped the student
    • a gunshot slapped him on the forehead
  4. adverb directly
    bang; smack; slapdash; bolt.
    • he ran bang into the pole
    • ran slap into her

WordNet

Slap noun
Etymology
OE. slappe; akin to LG. slappe, G. schlappe; probably of imitative origin.
Definitions
  1. A blow, esp. one given with the open hand, or with something broad.
Slap transitive verb
Wordforms
imperfect & past participle Slapped ; present participle & verbal noun Slapping
Definitions
  1. To strike with the open hand, or with something broad.
Slap adverb
Etymology
Cf. LG. slap, G. schlapp. See Slap, n.
Definitions
  1. With a sudden and violent blow; hence, quickly; instantly; directly. Colloq. "The railroad cars drive slap into the city." Thackeray.

Webster 1913