1. (

• slap ,
• smack

) a blow from a flat object (as an open hand) ;

2. (

• smack ,
• smacking ,
• slap

) the act of smacking something; a blow delivered with an open hand ;

1. (

• slap

) hit with something flat, like a paddle or the open hand; "The impatient teacher slapped the student"; "a gunshot slapped him on the forehead" ;