"Thanks for yours overnight" in different contexts

Hi everybody.
I would like to know what are the most common uses of the word "overnight" in the contexts below.
Thank you for your help.

1) Can I say "Thanks for yours overnight." to someone I met socially on the previous evening or does it usually imply a sexual conotation?
2) Can I say "Thanks for yours overnight." referring to a quick reply received by email or telephone call, or only when I actually receive documents or letters sent by an overnight delivery service (courier, wire)?

D. Trovatto

I am from the U.S. and I've never heard No. 1. Sounds sexual to me. As for No. 2, I've heard "overnighting" referring to sending a package or letter. "Thank you for overnighting the package."

I think "last night" is probably the expression you are looking for in example number 1, since it refers to a time in the past.

"Overnight" is usually used to describe how long something took. "I let the sweater soak overnight".

A better alternative to No. 1 might be, "I enjoyed meeting you last night.", or "Thank you for your company last night"