Abbreviation of フェティッシュ. Refers to a sexual fetish or an object of obsessive desire.
He seems to have a foot fetish.
Casual, often used in compounds like メガネフェチ to mean a strong liking or obsession, not necessarily sexual.
She has a shoe fetish.
She has a thing for glasses and collects various frames.
フェチ is a casual loanword for a specific fetish object or focus, while 性癖 more broadly covers one's whole sexual inclination.
ASMR video; sound-fetish content
Abbreviation of フェティッシュ, from English 'fetish'.