What is Bird Chest?
1.
Insultive term used for females who are boobless and males who have no muscle definition.
Damn, that bitch has a bird chest not even a bevel!
or
Dude, you need to work out, you have a bird chest.
2.
Only found on males. Havin no muscles so your ribs stick out like a bird cage, hince the term bird chest.
That lil nigga was so weak i crushed his punk ass bird chest wit one blow.
See