Final answer:
The line from 'Grease' contains comedic elements and potential cultural references.
Step-by-step explanation:
In the line from the musical 'Grease', Frenchy mentions that people think she looks like Shelley Farberries. This line contains comedic elements and potential cultural references.
The comedic element in this line comes from the fact that Shelley Farberries is likely a made-up name, creating a humorous comparison for Frenchy's appearance.
As for cultural references, this line satirizes the idea of celebrity look-alikes and the fascination with famous people's appearances.