maintenance like

You like a picture or a post on facebook made by a someone that you might want to date someday or eventually just to stay in contact with her/him. A very low effort way to make sure that your target gets notice on facebook or probably even a notice on her/his cellphone that you still follow her/his activities.

Q: That chick whose new profile picture you liked on facbook yesterday is friggin hot
A: Yeah, just gave her a maintenance like to make sure to hook up with her someday