The line comes from the Brazilian Portuguese dub of El Chapulín Colorado, known as Chapolin in Brazil, created by Roberto Gómez Bolaños. In that dub the hero Chapolin uses suspeitei desde o princípio as a proud catchphrase after solving a problem, as if he had known everything from the start. Decades of television reruns made the phrase part of everyday Brazilian speech, and it later spread online as a short reaction clip for memes, edits and group chats where someone claims they saw it coming.
About this sound
Chapolin's dubbed catchphrase 'I suspected from the start' in Portuguese, used as a reaction when a twist or obvious clue is finally revealed.
A short male voice line delivers the Portuguese phrase suspeitei desde o princípio, meaning I suspected it from the beginning, in a confident, slightly smug tone. The delivery is calm and self satisfied, as if the speaker knew the answer all along and is only now saying it out loud. At under two seconds it lands instantly, making a reveal feel both obvious and funny. Viewers recognise the hindsight claim right away, and the contrast between the serious tone and a silly situation is what gives the clip its comic sting.