the.com/catchphrase
A line so reusable it stops being yours and starts being everyone's.
means A short, memorable phrase repeated so often it becomes associated with a person, show, or brand.
from From catch (to capture) plus phrase — a wording that snags the ear and won't let go, coined in the 19th century for theatrical hooks.
Legal twistSome are trademarked, turning wit into property.
Comedy fuelSitcoms weaponize them for instant audience recognition.
Survival traitOutlives the shows and people who birthed them.