A fork of Rural Dictionary
'noah get the boat' is an expression based the Abrahamic idea of 'Noah's Ark', where Noah boards an Ark with a few humans and animals and leave the rest of humanity to die in a destructive flood. The statement is often used when a person sees something so horrible or cursed that they feel like wiping out humanity and starting anew.
Person A: "Have you heard? A man apparently got his sister pregnant during a party." Person B: "noah get the boat"