An idiom which states an increasing amount of danger or tension, similar to "
the shit's hitting the fan" only much more terrible and apocalyptic. The phrase is partly ironic, as if to exaggerate the rather mild (though hilarious) premise of the "
Snakes on a Plane" movie starring
Samuel L Jackson, which has
snakes on a plane.
"How bad was the
motorway pile-up?" "Let me tell you, it was like snakes on a plane down there."
"How's your relationship with Chloe going?" "It's
getting close to being like snakes on a plane man, seriously." "Damn, dude."