What is the rest collocation of the mouse's wooden shovel?

Rats are small, shovels are big, and they are big heads. The mouse is in front. The shovel is in the back. So the mouse pulled the shovel-the big head was behind. Metaphorically, things are just the beginning, and bigger or more important or more serious things are yet to come.

Others: the mouse swings on the swing-fighting internally and sleeping with the cat-practicing courage, the mouse fights three times and six times-covered in evil, the mouse plays the piano-talking nonsense (playing), the mouse bites melon seeds-Qiaozui Zhang, the mouse bites the cat-lawless, and the mouse rides the cat-what courage?