Green’s Dictionary of Slang

nanty adv.

also nante, nantee, nanti, nanty, nenti
[Ling. Fr. nantee, none or not; ult. Ital. niente, nothing]

[mid-19C+] none, no; esp. as general phr. of negation, meaning either I have none or No to that; also as n., nothing.

In compounds

nanty crackling (n.) [crackling n.]

[late 19C–1920s] (Polari) the vagina.

nanty narking (n.) [nark v.1 (4); lit. ‘nothing irritating’]

[early–mid-19C] great fun.

nanty widding (n.) [whid v. (1)]

[mid–19C] (UK Und.) no talking or chattering.

nanty worster (n.)

[late 19C–1900s] (Polari) something that is ‘no worse’.

In exclamations

nanty palaver! (also nantee palaver! nante palare! nanty panarly!) [palaver n. (1)]

[mid-19C+] shut up! be quiet! also as n.: no talking.