Here's the sentence from "How I met your mother"
Even if a dinosaur should poke his head out of my butt and consume this coffee table, I need you to roll with it, okay?
what's the meaning of "should" here? Does this mean "have to"?
what's the meaning of "poke his head out of my but"? I know what this sentence means : I poked my head out of the window. But I have no idea what "poke his head out of my butt".
I don't get the meaning of "consume this table".Does this mean "eating a table"?