sound of a puff of breath or air, 1824, imitative.
poof (n.2)
"effeminate man, male homosexual," c. 1850, perhaps a corruption of puff. The Australian extended form poofter is attested from 1910.
ponytail
Ponzi scheme
poo
pooch
poodle
poof
pooh
pooh-bah
pooh-pooh
pool
pool-ball