Frustro: The Impossible Typeface
Referring to: Frustro: The Impossible Typeface | Jeannie Huang
From the article:
Hungarian designer Martzi Hegedűs has created a single typeface, titled Frustro, on the sole premise of making it impossible. Based on the illusion of the Penrose triangle (which is by definition, an impossible object whose creator deemed it “impossibility in its purest form”) the type appears to be facing two different directions simultaneously.
You say Frustro, I think Linguo.