paff
/paf/(also paf)
exclamation
1Used to represent the sound of an impact, blow, explosion, etc.: ‘bang!’, ‘pow!’.
2Used as an expression of contempt: ‘nonsense!’, ‘rubbish!’ rare.
Origin
Early 19th century; earliest use found in Charlotte Smith (1749–1806), poet and novelist. Imitative. Compare piff, poof n.2.