The combination of these words creates a descriptor that can be interpreted literally regarding physiology or figuratively regarding behavior.
An inability to relax. A deep, religious devotion to rules, receipts, and being "technically correct" (the best kind of correct, according to them). They are frugal to the point of reusing dental floss. They are rigid. They are... wound up. tight ass
The "tight" look is a result of long-term muscle density. This requires showing up for your workouts consistently for at least 8–12 weeks to see significant changes. The combination of these words creates a descriptor
Muscle is built in the kitchen and during sleep, not just in the gym. religious devotion to rules