Grasp at straws means to try any idea, excuse, or possible solution when you are in serious difficulty, especially when that hope is very weak.
The expression comes from an old image: a drowning person may reach for floating straw in panic, even though straw is too light and fragile to provide real help. That picture explains the modern meaning clearly. Someone who is grasping at straws is desperate and trying things that are unlikely to work.
People often use this idiom when a person or group has run out of strong options. It can refer to problem solving, arguments, business decisions, or attempts to avoid blame.
- After the court rejected his main argument, his lawyer seemed to be grasping at straws.
- We were grasping at straws, trying every possible fix to get the server running again.
This phrase usually has a negative tone. It suggests urgency, weakness, or poor chances of success. It does not simply mean trying hard. It means trying something because better options are gone.