Characters
Forget it, Doug. Even with a swollen nose, I can still smell a rat.
— Marcia · The Brady Bunch Movie
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Even with a swollen nose, the speaker says their instinct for detecting trouble still works. 'Smell a rat' means sensing something fishy, and the line plays on the literal nose problem. Doug is told to drop the matter because the suspicion remains sharp and unshaken.
Context reviewed