1. tinfoil - Noun
2. tinfoil - Verb
A thin, pliable sheet of tin or an alloy of tin and lead, used as a protective wrapping.
(informal) aluminium foil
tinfoil (third-person singular simple present tinfoils, present participle tinfoiling, simple past and past participle tinfoiled)
(transitive) To cover in tinfoil.
Piety is the tinfoil of pretense. Elbert Hubbard
We're multigenerational Squires. (Carl) Which means what? You prance around with tinfoil armor and plastic swords pretending to be knights? (Nick) Sherrilyn Kenyon
Someone who says something like that must have eaten some seeds; and not those kinds of seeds we grow in our fields! It might be helpful to put tinfoil in your hat! Andrus Ansip
A tinfoil wrapper doesn't make a bum cigar taste any better. William Feather
I love theatrical props: a cup filled with solid fake tea, say, or a collection of fake food, including a rubber turkey, which, during the holidays, I wrap in tinfoil so it appears to have just come out of the oven. Amy Sedaris
It's always awkward when someone doesn't realize you're joking and devotes thought time to what you've said. Double that when the person is wearing tinfoil. Maureen Johnson