The phrase comes from Brazilian internet slang: to 'make the cavaquinho cry' means playing it with such feeling that the little guitar seems to weep. This short clip circulates on Brazilian soundboards as a ready-made sad-comedy sting, tagged alongside Bob Esponja clips because the overdramatic tone fits cartoon slapstick. Nobody plays a straight lament on a cavaquinho — the instrument is built for fast, happy samba — which is exactly why the weeping riff reads as parody. It survives because every language has moments that need a tiny, ridiculous funeral march.