Pamper pirate, n. — Green’s Dictionary of Slang

Pamper pirate n.

also Pamper sniffer

[Pampers, brandname of a line of disposable nappies or diapers + SE pirate/sniffer]

(US Und.) a child molester.

1992

Bentley & Corbett Prison Sl. 36: Pamper Pirate […] Pamper Sniffer An inmate who is in prison for child molestation.