An athlete's best or preferred foot, either as a lead/front foot or a back foot that allows for optimal performance.
"That mid-fielder kicked with his left foot, and nearly put the ball past the goalie. That's not usually his sugar foot."
"I got a right sugar foot. I jump higher and run faster with it because it pushes harder than my left."
Your right those boots are filled with sugar.
2. declarative; verbal command issued from pussy-equipped to pussy-whipped when the former wants something or something done from the latter.
2. "Sugarfoot! Aren't you listening?!"