When you empty something out with a liquid, you flush it. You might also be flush with cash, meaning you have a lot of it. Just don't flush that cash down the toilet! If one object or surface is flush with another, they are at the same height or distance from something else, so that they form a single smooth surface. You CANNOT LEAVE this ROBLOX GAME Flush will go through different ROBLOX GAMES to see if he's trapped in the game forever, or if its just a myth! Look up flush in Wiktionary, the free dictionary. FLUSH definition: 1. When you flush, you become red in the face, especially as a result of strong emotions, heat, or…. Learn more. Today, FLUSH will EXPLORE different CREEPY, SCARY MYTHS in POPULAR ROBLOX GAMES like STEAL A BRAINROT and GROW A GARDEN! What is the DARK TRUTH about the TALL BACON or IM_LOST? They're entities. The meaning of FLUSH is to fly away suddenly. How to use flush in a sentence.