Jest, gesture, joke... gerund????
It is true that the etymology of 'jester' travels through jest and joke.. stories of a witty sort, exploits and so on, all the way back to 'gerund' which basically means to carry, to bear, to take on oneself, take charge of, perform or accomplish.
The idea is that something is accomplished in Scorpio 30, carried off in a manner that brings a special awareness to bear.
Think of it this way: the tribe to which you belong need not necessarily be found in flesh and blood. And since this is a hallowed evening symbol, we are reminded of and the thinning of the veils between different realms of being.
Samhain Individuals with significant placements in Scorpio 30 may have a strong sense of humor... as if they get the jest and joke of it all... but they may also, whether they can articulate it or not, be aware of others realms, other tribes, other way of being that are beyond the apparent physical world.
It is possible that individual connected with Scorpio 30 have no urgent drive to find an earthly tribe. They may know they belong whatever the social realities may be.