Full Retard
Full Retard is a catchphrase and reaction macro from the 2008 comedy Tropic Thunder, taken from a scene where Robert Downey Jr.'s character Kirk Lazarus warns Ben Stiller's character never to 'go full retard' when portraying a disabled role. Online, the still frame and quote became a facepalm-style reply used to call a post stupid, spreading across 4chan, Facebook and MemeGenerator between 2008 and the mid 2010s.
Overview
Full Retard is a catchphrase and reaction macro drawn from the 2008 comedy Tropic Thunder, specifically the scene in which method actor Kirk Lazarus warns fellow actor Tugg Speedman never to 'go full retard' when playing a disabled character on screen1. Online, the line, along with screencaps of Robert Downey Jr. mid-lecture, worked as shorthand for calling a post, video or comment stupid enough to cross a line3.
The most common version of the macro pairs a still of Downey Jr. with the caption 'Nigga, You Just Went Full Retard,' and gets posted as a facepalm-style putdown rather than a captioned image the poster fills in themselves3.
How It Spread
How to Use This Meme
Users typically drop either the 'Nigga, You Just Went Full Retard' screencap or the bare phrase as a reply to a thread, video or comment they consider bafflingly stupid. The image works on its own without an added caption, functioning the same way a facepalm reply does. The bare quote 'never go full retard' also gets used as a warning against a plan or take considered obviously bad.