This part of the face can mean "impudence" or "sass"
[DOC] [TLE] Impertinence Synonyms, Impertinence Antonyms | Thesaurus.com [PAR] face  gall  guff  hardihood  impertinence  impudence  incivility  insolence  lip  
presumption  rudeness  sass  sauce  self-assurance  self-confidence... [DOC] [TLE] impudence - definition, etymology and usage, examples and related ... [PAR] Meaning of impudence with illustrations and photos.