definition of
slap

[1] #1 slap v. hit with something flat, like a paddle or the open hand; "The impatient teacher slapped the student"; "a gunshot slapped him on the forehead". wn

[2] #2 slap n. [smack] a blow from a flat object (as an open hand). wn

[3] #3 slap r. [bang, slapdash, smack, bolt] directly; "he ran bang into the pole"; "ran slap into her". wn

[4] #4 slap n. [smack, smacking] the act of smacking something; a blow delivered with an open hand. wn