Tumid is when your biceps have a circumference of 12-13" you're not quite swole yet but you're getting there!
Person 1: Wow look at that guy's biceps!
Person 2: They're a decent size but not huge, he must be tumid!
Person 2: They're a decent size but not huge, he must be tumid!
by Aviators Glidery Boi October 25, 2017