Som de sapo is Portuguese for frog sound, and this clip is listed as the third variant under that name, which suggests it was shared as part of a small set of short frog noises for soundboards. Its origin beyond that title is not documented, so it circulates mainly as a generic animal effect rather than a quote from a film or show. Short croaks like this spread because they are easy to reuse as a ribbit sound effect, a joke reaction and a quick soundboard button.