A combination of the words "thicc" and "fit"
Yo dude that girl over there is thict.
What you would call a woman (or man) who is thicc and fit at the same time.
Person 1: Damn she's thicc.
Person 2: She's not just thicc, she's thict.
When someone is both thicc and fit
“Damn, she be looking thict as hell”
The combination of thicc and fit
Steve: You see that girl Todd?! She thict!