can't see straight
1. Has impaired vision, often due to drunkenness. He's so drunk that he can't see straight. Please make sure he gets home safely. A: "Whew, I can't see straight after all those shots!" B: "Here, put your arm around me, I'll walk you back to our table." Just ignore that drunken fool—he can't see straight, and he definitely doesn't know what he's saying.
2. Cannot function, typically due to anger, frustration, fatigue, etc. I'll drive mom to the cemetery—she's so upset she can't see straight. After working a 36-hour shift, I can't see straight and only want to climb into bed. How dare he say something that hurtful, and downright offensive, about me? Ugh, I'm so angry I can't see straight!
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