PROTIP
Published September 23, 2026
PROTIP is an internet slang term used sarcastically to preface advice that is either genuinely helpful or absurdly obvious2. The joke traces to a March 2004 Doom parody image by Andrew Stine featuring the Cyberdemon and the caption 'To defeat the Cyberdemon, shoot at it until it dies'3. That image passed as a real GamePro scan for over a decade before Stine outed it as a photoshop, and the gag ended up referenced in Doom's 2016 reboot as a hidden achievement.
Overview
The PROTIP format wraps a piece of advice in an all-caps 'PROTIP:' label and then delivers something either useless, self-evident, or flatly wrong. The humor sits in the gap between the confident insider-tip framing and the triviality of the actual tip, with the Doom original ('shoot at it until it dies') setting the template3.
Outside gaming forums, protip drifted into a general-purpose ironic advice tag used across Something Awful, Reddit and blog comment sections in the mid-2000s3. Urban Dictionary's user-written definitions split the word two ways, treating it as both 'obvious advice sarcastically presented as sage wisdom' and 'a tip intended to convert a novice to an expert'2. The double meaning is load-bearing: readers cannot always tell whether a protip is earnest, joking, or both.