Reddit – Dive into anything

Me and my SO started a minor discussion regarding what the correctly used way of using “This Weekend” vs “Next weekend”.

I believe that using “This weekend” is referring to the current weeks end (Saturday 6th- Sunday 7th – From Monday 1st).Using “Next weekend” by meaning the next weeks end (Saturday 13th – Sunday 14th – From Monday 1st)

SO believe that “Next weekend” would mean this weeks end (Saturday 6th – Sunday 7th – From Monday 1st).Using “Next weeks weekend” by meaning literally that, the next weeks weekend (Saturday 13th – Sunday 14th – From Monday 1st)

I have done some googling regarding this and I feel more confused now than ever. it has not helped us close this discussion, so I was hoping r/grammar could help us.

Which one is correct?Is there a Direct “You’re wrong, she’s right” or vice versa?Or is it more complicated than this?

EDIT: Thank you all for your answers, we haven’t found a “Correct usage”, which annoys the hell out of me to be honest.
Not only did these answers make everything more confusing, but also we found more people who use MORE different wordings.

Thank you all again!