Green’s Dictionary of Slang

(US) a pompadour hairstyle, esp. worn by ‘rockers’, Teddy Boys etc.

1914		E. Wittmann ‘Clipped Words’ in DN IV:ii 123: pomp, from pompadour. ‘He wears his hair in a pomp.’.
1929		E. Booth Stealing Through Life 13: There was even a tuft of fur rising from between his ears, which coincided with the famous ‘pomp’ of the ex-heavy-weight champ.
1957		‘Ed Lacy’ Lead With Your Left (1958) 22: The pomp in front raised and with a good curl.
1959		E. De Roo Go, Man, Go! 15: She mussed his hair while reaching to the top of his head for balance. ‘Didn’t mean to part your pomp.’.
1974		(con. 1940s) E. Thompson Tattoo (1977) 3: His long blond pachuco pomp clogged with Wildroot Cream Oil.
1984		C. White Life and Times of Little Richard n.p. photo caption: Pumping that pomp.
1990		S. Morgan Homeboy 124: [He] was building a stratospheric pachook pomp that fairly begged for half a tube of Brylcreem.