I Can't Believe You've Done This
Published August 29, 2026
A 2007 YouTube clip of a British teenager getting sucker-punched mid-sentence and muttering "Ah fuck, I can't believe you've done this" turned an amateur stunt video into one of the internet's most quoted deadpan reactions. The clip became a go-to sound bite for lip-dub remixes and parodies, and it briefly made headlines in 2021 when YouTube pulled it down and then had to publicly walk the takedown back.
Overview
The whole appeal of I Can't Believe You've Done This is the flatness of the delivery. A teenager starts talking to the camera, a friend cracks him in the face out of nowhere, and instead of yelling or swinging back he just sighs the line like someone whose train got cancelled3. That mismatch between the punch and the vaguely disappointed British reaction is what viewers latched onto, and Urban Dictionary contributors were already logging it as "the best response to being punched, ever" four months after upload1.
The clip mostly lives on as a catchphrase and an audio bite. Later YouTubers cut the "Ah fuck, I can't believe you've done this" line into lip-dub edits, cartoon dubs, and remix videos, swapping the original punchee for cats, Peppa Pig and other characters while keeping Weedon's audio intact2. Paul Weedon himself later wrote about the clip's origins for Vice, framing it as one of a run of Jackass-style stunts he and his friends filmed as teenagers2.
Origin & Background
How It Spread
How to Use This Meme
Most uses of I Can't Believe You've Done This lean on the audio rather than the visuals. A common convention is to dub Weedon's line over a cartoon, video game or animal clip so that the on-screen character appears to deliver the deadpan reaction after some minor betrayal or slapstick hit. Written uses typically pair the phrase with a screenshot or gif of any mild, non-violent disappointment, the joke being how disproportionately calm the response is.
Frequently Asked Questions
References (4)
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