[General] Went in a vacation or on a vacation

[Venus.jam]

Hi there,


I was chatting with a native American speaker who used the sentence below:

"They went in vacations and I was born there".

But, I think the correct form is "they went on vacations and ....". But, he said that both are possible. But, I'm still confused.

Would you please let me know the correct form?

 

[Raymott]

"On vacation" is the usual term.
But here he means something slightly different. He means during/in a certain time period that happens to be a vacation. "I'm going there in the Easter vacation."

 

[konungursvia]

I think the person was either not actually a native American speaker, or, more likely, he said something slightly different to that which nevertheless sounded the same. No one on this continent would likely say "he went in vacations and I was born there." Could part of it have been Cajun?