unprotected lunch

Type of lunch that you have with the opposite sex for the first time. If the meeting place for lunch is in a bad part of town (hookers on Queensway) or the restaurant is dicey, you may be having unprotected lunch.

Jenn:
I'd love to have lunch with you Jay but that part of town is gross.

Jay:
I understand, I wasn't really down for having unprotected lunch on our first date either.