(transitive) To swallow (something) with a strong effort.

plural of worry line

A permanent wrinkle on the forehead.

(UK, slang) An old lady's tea party.

plural of muffin worry

Free from worries; (by extension) safe; secure.

plural of worry-wart

(informal) To cause someone to worry to a great degree. / (informal, reflexive) To worry to a great degree.

(idiomatic, US) As an interrogatory, indicative of a nonchalant attitude towards potential criticism, not caring about what other people think, confident and self-possessed.