all someone's geese are swans
all (one's) geese are swans
One is overexaggerating and not in touch with reality. Geese and swans are quite different, so to think they are the same is a stretch of the truth. I can't listen to another one of Tiffany's stories that cast her as the adored heroine. All her geese are swans if she thinks everyone at work likes her!
all someone's geese are swanssomeone habitually exaggerates the merits of undistinguished people or things.
The goose is proverbially contrasted with the swan as being the clumsier, less elegant, and less distinguished bird; compare with turn geese into swans below.