What do you mean by shaking a bag?

Shaking baggage is a cross talk term, revealing suspense or key jokes.

Shaking baggage comes from the phonological world, which refers to revealing the key parts of suspense or jokes set before in the performance. This technique can bring drama and comedy effects to the audience and trigger a pleasant reaction. When telling jokes, the last sentence is ridiculous, the finishing touch is a burden. Nowadays, "shaking the baggage" is also widely used in network language to express interest, attract attention or tease others.