boss: can you get that done by noon? you: i'm all over it like a donkey on a waffle
to make an act one's top priority, much like scarfing free breakfast would be for a donkey, were it confronted by an unattended waffle
"boss: can you get that done by noon? you: i'm all over it like a donkey on a waffle" What is the definition of "all over it like a donkey on a waffle"?