put on the dog
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- (colloquial, idiomatic, dated) To dress up; to make a show of wealth and/or importance; to be pretentious. [from 19th c.]
- Synonym: put on airs
- 1985, Peter Carey, Illywhacker, Faber & Faber 2003, p. 94:
- If she softened her natural vowels a fraction in keeping with her role as a Protestant lady, she did not put on dog or act in a snobbish manner.