Green’s Dictionary of Slang

chickenshit v.

[chickenshit n.]

(orig. US) to act in a cowardly or otherwise distasteful or half-hearted manner.

[US]Wentworth & Flexner DAS.
[US]G. Cuomo Among Thieves 173: Everybody started chickenshitting around then, razzing and blowing off.
P. Auster City of Glass (1988) 37: [He] chicken-shits a little grounder to first.
[US]C. Cook Robbers (2001) 35: Chickenshit his way through this world, sneak into the next.