bull dogging is when a cowboy rides up next to a steer, grabs its horns, slides down from the horse and then uses his legs and weight to wrestle the steer over on its side. The fastest time win. You need strong legs to get the steer to slow down and then strong arms to twist the head back by the horns so that the steer has no choice but to lie down.
I've seen skinny 90-pound weaklings take down 1,000 plus pounds of beef on hoofs down in less than a minute.