WTF is "Constitutional Supremacy"?

Main problem hai textbooks mein, woh yeh definition dekhana nahi chahate, bas "Constitution is supreme" likhkar chhoden. Aisa kyun? Kya hoga agar Constitution se zyada koi bhi cheez supreme ho? Kya hoga judiciary ke role ka?

Mujhe lagta hai, yeh concept clear karne ke liye ek real-life example zaroori hai. Koi bata sakta hai, woh example jo hoga, jisse pata chale ki Constitution kya hai aur kaise work karta hai?