XKCD Substitutions Chrome extension
chrome.google.com
chrome.google.com
Another popular one (switch "cloud" to "butt") has resulted in me finding image embeds from "buttfront.net" (and broken images) in page sources on a couple of popular websites.
http://net.tutsplus.com/tutorials/javascript-ajax/spotlight-...
http://james.padolsey.com/javascript/find-and-replace-text-w...
Try (http://www.gizoogle.net/) the next time you go to read any political article. Not only is it more entertaining, it's also more accurate in many cases.
Legions of xkcd fans: collectively a "sufficiently smart compiler"? an "eager-to-please interpreter"?
EDIT: Dammit! Just saw the alt text on the original... ah well, great minds and all that...
"If you believe Elf-Lord Lindsey Graham is actually a lizard, you're among friends—12 million of them."
http://www.thedailybeast.com/articles/2013/11/03/fringe-fact...
var snap = document.evaluate('//text()', document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );
for (var i=0;i<snap.snapshotLength;i++){t=snap.snapshotItem(i);t.textContent = replace(t.textContent);}
Also, the regexps would probably be better like /\belection\b/gi, to avoid eg reelection->reeating contest.