at (one's) wit's end

In a state of distress that is reached when someone has no more patience. The baby's been crying for hours, and I'm at my wit's end! I'm already at my wit's end, so if this train gets delayed too, I'm going to scream.

Common Names:

Name	Pronounced	Usage
Keila	-	English (Modern)
Blaanid	-	Manx
Mariella	mah-RYEL-lah	Italian
Azubuike	-	Western African, Igbo
Erato	-	Greek Mythology
Mio	mee-o	Japanese