A switcharoo occurs when a witty redditor feigns ignorance about which of two subjects in a post (typically an image) is more comment-worthy.
These 'roos are linked in a chain; this subreddit keeps track of the most recent link. This will help keep it in one long line, (as the creator intended) instead of branching out wildly.
Notice a clever switcharoo as you browse Reddit.
Visit /r/switcharoo/new, and copy the link of the newest switcharoo submission, either by right-clicking on the submission and copying the URL, or following the submission and copying the URL in your address bar.
Reply to the switcharoo you found in step 1, and paste the copied URL from step 2 as a hyperlink, with text such as "Ah, the old Reddit switcharoo".
Once your reply is submitted, right-click your reply's permalink, and copy its URL.
Count the number of levels of parent comments that are needed to understand the context of the switcharoo.
On /r/switcharoo/new, submit a new switcharoo with the pasted URL from step 4, with context syntax. If your URL contains a "?" at the end, delete it and everything else after it. Then add ?context=x to the end of your URL where x is the number of levels you counted in step 5.
The title of your submission should be [originally intended subject] vs [switched subject]. Congratulations, you've just made a successful 'roo!
There’s a link to the original post from 8 years ago 140 links in. Keep going, you’ll find it eventually.
I also found a map from 12 years ago hopefully leading up to the original:
https://i.imgur.com/WpPdKhg.jpg
I've not found the original switch-a-roo that's on the map yet.
Edit: I've found an updated map from 8 year's ago it shows everything from 2011 to 2015:
https://i.imgur.com/v6B4lbI.jpg
Edit 2: I've found the original comic:
Edit 3: It was later changed to Never gonna give you up and later to the author's AMA.
