A strategic coup d'état of a couch or other piece of furniture. Accomplished by means of small, deliberate moves toward both extremities of the seating arrangement simultaneously. The end goal is reached when one maintains full possession of the couch, futon, sofa, or love seat. Ejection of any and all previous couch-goers to the floor is preferable. A cunning and underhanded move requiring skill, tact, and wit.
I wanted to stretch my legs, so I went all manifest destiny on Gus and Sam. They finally surrendered to my inevitable couch conquest, relocating themselves to the floor.