A combination of the the two words Thick and Fit, first ever seen in a video by a YouTuber who goes by the name of Kryoz. The word was unaccepted by the group but still a word.
Not to be confused with "Thit" or "Thicc"
"Dude that girl was THICT" said Harold to his friend.
"Damn Stacey your mum is pretty thict" described Tom