You've/it's got me stumped slang
Used to describe that you have no idea about something or you are unaware of something.
I am very sorry to hear that your father passed away. Indeed it's got me stumped.
Used to describe that you cannot find an answer to something.
"What's the capital city of Bulgaria?" "You've got me stumped, George."
To be surprised by some sudden occurrence
To greatly surprise, shock, or confuse someone
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.