Or perhaps name it after pooh himself, with his quizzical faith in human (animal) nature?
Willie leaned over and whispered that Winnie the pooh had the hots for me.
"pooh, that quarrel was of no consequence," was the lofty reply.
How many great schemes might anyone nip in the bud by one “pooh.”
If he doesn't understand a thing at once he dismisses it with “pooh.”
You go to your death for a friend, and if by a miracle you escape: ‘pooh! ’
It was now quite dark; and Mr Culpepper stared at the coxswain, and then replied, “pooh, nonsense!”
pooh—your health is better: you don't look like the same man.
To the people who told him about the cartridge balling, he expressed no opinion; but to himself he said, pooh!
"pooh, man, you're frightening yourself," the Colonel answered.
1590s, "a 'vocal gesture' expressing the action of puffing anything away" [OED], first attested in Hamlet Act I, Scene III, where Polonius addresses Ophelia with, "Affection! pooh! you speak like a green girl, / Unsifted in such perilous circumstance. / Do you believe his tenders, as you call them?" But the "vocal gesture" is perhaps ancient.
A mild exclamation of disbelief, dismay, disappointment, etc: Oh poo, I dropped it (1602+)