Shame Baby
A person who is easily "triggered"(Offended); filled with guilt about being born white, straight, <insert any racial/social economic/gender base> status for whatever given situation. Many Social Justice Warriors are Shame Babies.
Lena Dunham is so ashamed of being white, she's such a Shame Baby!
Shame Baby
A child born to a mother who is under 18 years old
Luca is a shame baby because his mom had him when she was 12 years old.
Shame Baby
When a trucker needs to go number 2 but there's no toilet. Poop in a bag instead.
The car harassed the trucker so the trucker launched a shame baby out the window onto their windshield.