When your date comes over to your house for the rendezvous, or vice versa.
I had a Drop In Date with that guy during Election Day.
by Frinatrak June 26, 2016
When a guy just tells girls to cum over for a date because he is too busy with work to go anywhere. That way she can just "drop in" for a date whenever she is in the neighborhood without making formal plans and having to doll up to go out. This is a big time saver and very convenient and minimizes drama.
Example: Jim called Shell over for a drop in date and he cooked her dinner and they cuddled together afterwards.
by drop in dater December 06, 2009