HackerVoca

strike : hit, knock, beat, pound, slap1 verb slapped, slapping

1 [transitive] to hit someone quickly with the flat part of your hand: Do you think it's OK to slap children if they're really rude? | slap sb on the back (=hit them on the back in a friendly way)

2 [transitive always + adv/prep] to put something down noisily on a surface, especially when you are angry : slap sth on/down: I slapped the report down on his desk and told him to do it again.

3 [intransitive] to hit a surface, making a sound like someone being slapped noisily

[+ against]: Small waves slapped against the jetty

slap sb down phrasal verb [transitive]

to unfairly and unkindly criticize someone so that they lose confidence

slap sth on phrasal verb [transitive] informal

1 to put or spread something quickly or carelessly onto a surface: She rushed upstairs and slapped on some make-up.

2 to suddenly announce a new charge, tax etc, especially unfairly or without warning: Many tour operators slap on supplements for single people.