social stacking

The practice of attending multiple social functions consecutively. A sign of popularity. May be reduced to "stacking". The person who has such a busy social life is a "stacker".

Popular chick A: What's on tonight?
PC B: I got the dinner at Bev's, then meeting Aldo for drinks at (the coolest place in town here), the Jackie's wants us to meet her at Chang's for dancing.
PC A: I so love social stacking.