When someone is obsessed with someone and does everything they can do to get someone to like them.
Why the fuck is Tiffany liking and commenting on all of Stephanie's posts? She just wants to get invited to her fancy party. That bitch is curtain skirtin!
To keep a girl/guy on the side to have sexual intercourse later, because she is not eligible to play for whatever reason . Usually, because she/he is underage by a few months.
Sort of like a red shirt in sports.
Also spelled RedShirting, Red Shirtin, or RedShirtin
"Tyga is red shirting Kylie until she turns 18"- an interview with Charelamge on VLAD TV about the subject