standing room only
noun[U]
MARKETINGukusa way ofsellingaproductin which someonetriestosellitquicklybytellingthebuyerthat manypeoplewanttobuyit and that only alimitednumberareleft:
With astandingroomonlysalesclose, youindicateto thebuyerthat, if they do notbuynow, they might not beabletobuyin thefuture.