“Que penca” is a slang expression strongly associated with Chilean Spanish, where it means something like lame, bad or disappointing. Online, short reaction audios built around the phrase spread through meme pages, chat groups and quick video edits because the wording is instantly dismissive even for people who only know a little Spanish. Its staying power comes from how easily it fits fails, anticlimactic moments and sarcastic commentary, much like a bruh-style reaction used to underline secondhand embarrassment.