Said by an shitty bird who is dangerous world-wide. He's an green owl which looks green, cute and innocent but in reality he fucking kidnap the users' family if they don't do their lession. It is said that duolingo's favourite language is Spanish. If you don't do your spanish lessons he might come in your house, kidnap your family or either vanish you. That's why he says Spanish Or Vanish.
Person: I feel tired. I'll not do my spanish lessons today, after all , nothing will happen if I didn't do my lessons for 1 day.
Duolingo: *Breaks door* SPANISH OR VANISH?
by ImTheLocalIdiot May 25, 2021
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Said by some shitty ass green bird/owl if you don’t do your lessons. It claims Duolingo’s main language is Spanish. So that’s why the shitty asshole says SPANISH OR VANISH YOU STUPID HEAD
Me: decides I studied enough Japanese for the day
Duolingo:
Spanish or Vanish and btw beg for your family back in Japanese
Me: KU DA SA I
by AQUAR1US4LIF3 June 7, 2023
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A term used by the Duolingo Owl (named Duo) who performs the action of sending you to a place of death and despair if you don't do your Spanish lessons

By the way, have you done yours today?
Spanish or Vanish, Matthew!
by elvis gadd November 9, 2023
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