Green’s Dictionary of Slang

(Ling. Fr./Polari) a young person, a child that is under the age of consent.

2002		Juha ‘Polari’ 🎵 on Polari [album] How’s your double dippin? / Can you fit me & Rex inside without rippin? / This salty sea cave wanna fill with foam. / Jarry this bagada, filiome.
2019		P. Baker Fabulosa 292/1: filiome 1. a young man. 2. an underaged sexual partner.
2023		R. Milward Man-Eating Typewriter 75: The Hostel for Feeli-Omis.