The origins of remotely foodlike substances

The memorable phrase comes from an argument about whether you can eat something that isn't food or whether if you can eat it and it doesn't kill you, it's food (what doesn't kill me makes me stronger...). The argument ended, if memory serves, as such arguments often do: "Leave it at 'remotely foodlike substances'! I'm hungry! Will you go to the store?"
And therefore since them, mere "I'm hungry." "What do you want to eat?" "Uh.... foood!" convos won't cut it. This is now commonplace:

"I'm hungry."
"What do you want to eat?"
"Food."
"Don't think we have much of that."
"(and this is a chef's house!) Um... remotely foodlike substances then?"
"Here's paper..."