The exact origin of the 'vende uns PC' voice line is unknown, but it circulates on Brazilian soundboards and WhatsApp groups as a piece of internet slang humor, where the speaker casually pitches PCs like a street vendor. The ba dum tss rimshot itself is far older: a vaudeville and stand-up comedy staple, two drum hits plus a cymbal crash that signals a bad joke just landed. Paired together, the clip works as a ready-made comedy button, which is why meme editors keep reaching for it whenever a punchline needs a little extra sarcasm.