Green’s Dictionary of Slang

walk-about n.

also walk-a-leg, walk-a-picky
[her tale-telling perambulations]

(W.I.) of a woman, a busybody, a gossip.

[WI]Allsopp Dict. Carib. Eng. Usage 587/1: walk-about (walk-a-leg, walk-a-picky) [...] A woman who is a busybody and a gossip; a restless news carrier.