The English verb slap means to hit somebody/something with the flat part of your hand
Oxford Learner’s Dictionaries SLAP
Like all English verbs, slap has many forms. I made this blog post to teach you the different forms and use them with real examples. This makes the verb easy to understand.
Infinitive to slap
- He made me so mad that I just wanted to slap him in the face.
Present simple I / you / we / they slap
- Why did you slap me?
Present simple third-person singular he / she / it slaps
- He slaps everyone, I think he has a problem.
Past simple slapped (spelled with two P’s)
- Will Smith slapped Chris Rock at the 2022 Academy Awards.
Past participle slapped (slap is a regular verb so the past tense in the past participle are spelled the same)
Chris Rock was slapped by Will Smith at the 2022 Academy Awards. * This past participle example is the Passive voice – TO BE slapped
I wonder if he has slapped other people too.* This past participle example is the Perfect tense – HAVE / HAS slapped
Continuous form TO BE slapping
Devin WAS slapping the TV trying to fix the picture, but I think he just made it worse.
3 Idioms with the verb SLAP
A slap in the face
A set phrase used to describe words or actions that have offended or otherwise upset someone.
- I have worked so hard for this company for many years. I can’t believe they gave the promotion to Trevor instead of me. This is a real slap in the face.
Slap together
To assemble, arrange, or put together, quickly and carelessly with little or no thought.
- If you’re hungry I’ll slap together some lunch with some leftovers I have in the fridge.
A slap on the wrist
punishment that is weak, not strong enough
- Many people feel the punishments for crimes using guns are not strong enough. They’re only a slap on the wrist.
https://worldenglishblog.com/english-idiom-a-slap-on-the-wrist/

Thanks to https://idioms.thefreedictionary.com/ for the idiom ideas!