houkago rojiura doumei!

In Carnival Phantasm, "Houkago Rojiura Doumei!"(Afterschool Alley Alliance) is the catchphrase of the recurring manzai comedy act consisting of Sion Eltnam Atlasia, Yumizuka Satsuki and Riesbyfe Stridberg. The memetic gesture associated with it involves looking away from the viewer, snapping the fingers, then turning back to the viewer making double finger guns.

For images featuring these three as a trio, see Danbooru pool #23867.