Green’s Dictionary of Slang

turkey v.1

to strut around.

[US]S. Ford Torchy 101: One mornin’ he come turkeyin’ out to the brass gate [etc.].
[US]S. Ford Shorty McCabe on the Job 66: Why, to see him turkeyin’ round, glancin’ at himself approvin’ in the mirror, [...] you’d think he had some matinée idol as an understudy.

In phrases

turkey out (v.)

(US gang) to back down, to exhibit cowardice.

[US]E. Hunter ‘On the Sidewalk, Bleeding’ in Best of Manhunt (2019) [ebook] I wasn’t afraid of the Guardians. I never turkeyed out of a rumble with the Guardians. I got heart.