English

Definition of sourpuss noun from the Oxford Advanced Learner's Dictionary

 

sourpuss

 noun
noun
BrE BrE//ˈsaʊəpʊs//
 
; NAmE NAmE//ˈsaʊərpʊs//
 
(informal)
 
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a person who is not cheerful or pleasant Word Origin 1930s (originally US): from sour + puss ‘a person's face, mouth, expression’.
See the Oxford Advanced American Dictionary entry: sourpuss