punkawn, n. — Green’s Dictionary of Slang

punkawn n.

[Irish poncán, an American, esp. a Yankee]

(Irish) a talkative, self-assertive person.

1902		Dly Morn. Jrnl & Courier (New Haven, CT) 22 Mar. n.p.: Many a cask of poteen flowed to cheer the spirits of the [...] thirsty punkawn.
1943		(con. 1850s) G.A. Little Malachi Horan Remembers 28: They were a comical sight. I remember them well, and I only a punkawn of a chap.