A person either Male/Female/Non-Binary that has become so morbidly obese that they have taken on characteristics of both sexes. Rather a male with amount of fat deposit in breast/bust area, hips, thigh, and buttock. For the female an expanded waistline and stomach area. Creating a box-shape of fat and cellulite. Also the female will carry a front pooch area, otherwise known as a BIF or Butt in Front.
Bro, do you see that Big Ol’ Thicker that dude has Triple G’s he’s gotta way 400 pounds.

Damn she’s a Big Ol’ Thicker, look at that BIF on her. That’s disgusting.

Woah They look so morbidly obese and they are wearing I’ll fitting clothes. Definitely a Big Ol’ Thicker.
by Pudgee October 23, 2020
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Brianna. Of many other things. See also, bitch.
I know, I'm a big ol' b word, aren't I? B is for Brianna, of course.
by Boom for Boomer December 2, 2022
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