Green’s Dictionary of Slang

hind tit n.

[backform. suck (the) hind tit under tit n.2 ]

(US) unfair treatment.

[US]M. Shulman Rally Round the Flag, Boys! (1959) 95: In wartime a professional soldier [...] had stature. [...] But what did he get in peacetime? Hind tit, that’s what.