laughline

(lăfˈlīnˌ, läfˈ-)

noun
  1. A line of dialogue intended to cause laughter: “actors who are directed . . . to cutely underline every nuance and laughline” (Laurie Winer).
  2. A lasting wrinkle or collection of wrinkles formed at the outer corner of the eye, especially noticeable when one laughs or smiles.
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