"First date" refers to the initial meeting between two people who are considering starting a romantic relationship. It's a chance for them to get to know each other better and decide if they want to pursue something more. Full definition
Everyone thought I was foolish, but I saw the writing on the wall: people are more apt to go on first dates with people they've never met before in person. (jetmag.com)
While going for first date with any female, limit yourself to eye contact at the most. (adultfindout.com)
If true, those 10 % of men are having sex on first dates with 2 % of women, ie. (blog.match.com)