This unglossed headword phrase is apparently a mild corruption of a verse attributed to Sophron (sigma 893, a 5th century Syracusan writer of mimes): see Hesychius nu734 (= Sophron fr. 144 Kaibel, fr.136 Rusten-Cunningham and now Kassel-Austin (PCG vol.I): nu=n t' h)=nqes e)s xoro/n, nu=n t' e)/prades: nu=n ei)s xoro\n h)=lqes, kai\ nu=n e)/pardes. "now you went [a Doric form of the verb] into a dance, and now you farted": now you went [standard Attic form] into a dance, and now you farted.
According to LSJ (web address 1) the aorist e)/pardon from pe/rdomai ("I fart") appears only in compounds, though this is not the case here. The aorist forms e)/prades and e)/pardes show different dialectal treatments of an inherited vocalic r (cf. alpha 3029).
cf. generally nu 605.