Green’s Dictionary of Slang

jewlark v.

[SE gill/jill, a girl or woman + lark v.; other suggestions for first syllable include Jew, to delude or Fr. jeu, a game]

(US) to flirt, to court.

[US]J.J. Hooper ‘The Muscadine Story’ in Chittick Ring-Tailed Roarers (1941) 250: Wonder, if I’ll ketch that rascal Jim Sparks jewlarkin’ round Betsy.