leave a brick Share definition Flag it means to get a drink and only take a few sips, leaving almost a full cup/bottle to go to waste. Everytime we go to a party, he always finds a way to take someone else's beer and leave a brick because he didnt want to finish it. leave a brick by Tris May 8, 2004 0 0 Get merch Get the leave a brick mug. Buy Now — $32.95 See more merch