That would be the one - first guy holds on to a tree or a phone pole, next guy onto first guy’s waist, other team jumps on them and tries to knock ‘em down. Today, they’d all be charged with assault.
That’s almost it....the first guy was called the “pillow.” He’d lean against a wall..everyone else on his team.bends over at the waist, grabs the guy in front of him..the other team sequentially runs and jumps onto the backs.