What does "naff" mean?

Bad; tasteless, poorly thought out, not workable.

Naff

/næf/ adj, name, slang

adj, name, slang ·Moderate ·College level

Adjective

1
Bad; tasteless, poorly thought out, not workable. British, Commonwealth, Ireland, Polari, colloquial
"That tie is a bit naff, don’t you think?"
2
Heterosexual. Polari
"The omie was a veritable donkey beneath the waistband, darlings. A donkey! No wonder your boss-palone is so smitten. I've seen my share, dollies, but this old omiepalone was shaken to the core. Such a terrible waste on a naff bloke."

Proper Noun

"My new phone case is a bit naff."

Etymology 1

Perhaps from Polari, 1960s. Further etymology unknown; perhaps a conscious corruption of either fanny or eff (off) (see naff off).

Etymology 2

South German and Alemannic German surname (Näff), variant of Neff.