Someone who is constantly looking for foil to smoke with asking the neighbors looking on the groundect.
First person: Did you see him foiling?
Second person: who
First person: that guy walking up and down the street looking to see if anyone threw out a piece of foil off there leftovers. He's foiling.
Randy and Jim where on the prowl out foiling all night
I seen the foiler dressed in a tin foil outfit for Halloween
A filing cabinet is formal term for a person that exhibits little to no intelligence, provided that they have a functioning brain. Many people mistakenly use terms like "stupid", "retarded" or "mentally handicapped" in place of such a word, but those words are reserved for people without a fully functioning brain.