How woman is so sure about the kid in this context?

Question

Man find his wife in partying area, but wife complaining about the people to his man.

Man: you left me, remember?

Wife: I know, I know.But then I was hoping that you would come after me. It wasn't like you walked out of a bar! It was a divorce.

Man: And why are you even at this place? Do you know this place is insane?

Wife: I'm getting called names. I've been called a cougar, a black panther, a puma! I had to smack this one kid. That's the last time he'll walk up to a woman talking about cougar!

Well I didn't understand wife word's here, Is she sure about the kid's behavior in future or what ?

Instead of saying "that will be the last time for him", she says differently here.

Answer 1

There are a few different elements to break down here, both in context and definition.

When the wife is talking about getting called names, the terms she lists:

cougar, black panther, puma

Are all slang, provocative, informal terms for an attractive woman. So in the place they're in, she's being called attractive by a number of men there. Because this is the context of the place they're in, the kid is not a child but a younger man.

When she says:

I had to smack this one kid. That's the last time he'll walk up to a woman talking about cougar!

Calling someone a cougar is something that can be taken as rude; it's certainly not polite. By saying she smacked him and the whole "that's the last time" part, she hit him and she is suggesting that by hitting him, the next time this kid thinks about calling another woman a cougar he won't, because he'll remember he got hit the last time he did it.

With regards to using that will be the last time for him instead of that's the last time, there is no difference in meaning. The latter just flows better in conversational English.