When you have committed to plans with a girl that you are not romantically interested in and therefore feel like you are not able to pursue a romantic relationship with anyone else until that commitment is fulfilled.
Typically in reference to a homecoming or prom type event.
âHey man are you gonna slide on Hannah?â
âDude I canât until after homecoming cause I told Jenna I would go with her and I donât want to look like a doucheâ
âDang man, youâre really in a romantic lame duck periodâ