Top definition
When a person is thick but you know from their look that they have been like that all of their life...
Damn she thick!, Ethan replies nah she birth big it don't count .

I remember yo sister being wayyy skinnier than that, Ridley replies your slow she birth big she can't get no skinnierπŸ˜’
by Hxmble October 22, 2017
Get the mug
Get a Birth big mug for your cousin Sarah.