A "lunch date" refers to meeting someone for a meal during the lunchtime period, typically as a way to spend time together or get to know each other better. Full definition
Also, take advantage of any networking events or schedule lunch dates with other professionals to give yourself an edge over other applicants. (livecareer.com)
My husband also had an emotional affair with an old high school flame, with whom he met secretly for lunch dates for two years behind my back. (goodtherapy.org)
It's Just Lunch dating matchmaking service does not think so. (itsjustlunchblog.com)