"Stand you a.." can be used this way in British English but it usually means that you will PAY for someone's meal. There were some minor errors: "I'll stand you a meal" = This sounds better than dinner, here. [You can use dinner and it is still correct, however]. "I'll stand you a drink" = Fine. "What about having dinner together sometime?" = Perfect. Hope this helps and take care! NB: This may also be correct in American English as it is listed in Merriam-Webster as possible: http://www.merriam-webster.com/dictionary/stand Note point 5 on the above link. Hope this helps and take care :)!

I'll TREAT you to dinner. I'll send you a drink. HOW about having dinner together sometime? The word 'stand' is the wrong verb. I can not determine what you want to do with the dinner and drink.