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 April 19, 2018
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