Characters
It's time we opened up a can of whoop tooshie on this situation.
— Marge ‧ The Simpsons

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker calls for forceful action using a softened version of a familiar tough expression. Replacing a harsher word with tooshie makes the declaration comic, while the can-opening image promises a sudden release of energy. The words signal determination without specifying what action will follow.
Context reviewed