Like hitting a brick wall- This idiom has two common meanings: 1. Physically ineffective – When you try to hit or push someone (or something), but they don’t move or react, as if you’re hitting a solid wall. • Example: He took his best shot, but the guy didn’t even flinch—it was like hitting a brick wall. 2. Facing an obstacle – When you’re working on something but making no progress, no matter how hard you try. • Example: I’ve been trying to negotiate this deal for weeks, but I keep hitting a b