Wordfrick is a tampermonkey script that jumbles up the text on any webpage of your choice. The results are oftentimes hilarious.

wordfrick.js

// ==UserScript==
// @name         Wordfrick
// @namespace    https://www.chosenfewsoftware.com
// @version      1.0
// @description  Screw up any text on any webpage with the click of your mouse
// @author       Yodadude2003
// @match      *://*/*
// @grant        none
// @require https://code.jquery.com/jquery-3.4.1.min.js
// ==/UserScript==
setInterval(function() {
    'use strict';
    // Your code here...

    let stopWords = ["for", "and", "nor", "but", "or", "yet", "so", "as", "with", "not", "to", "of", "on", "in", "all", "a", "an", "is", "by", "the"];
    let punctuation = [".", ",", ";", "!", "?", "\"", "(", ")", "[", "]", ":"];
    let numbers = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
    let tagTypes = ["p", "span", "a", "li", "em", "strong"];

    $(tagTypes.join(":not([fricked]),"))
        .contents()
        .filter(function() {
             return this.nodeType == Node.TEXT_NODE;
        })
        .each(function() {
        let tokens = this.data.split(" ");
        let startIdx = Math.floor(Math.random() * 5);
        for(let i = 0; i < tokens.length; i++)
        {
            let otherIdx = Math.floor(Math.random() * tokens.length);

            let thisWord = tokens[i];
            let otherWord = tokens[otherIdx];

            let areEmpty = thisWord == "" || otherWord == "";
            let areStopWords = stopWords.includes(thisWord.toLowerCase()) || stopWords.includes(otherWord.toLowerCase());
            let areProperWords = thisWord != thisWord.toLowerCase() || otherWord != otherWord.toLowerCase();
            let havePunctuation = punctuation.some(ch => thisWord.includes(ch)) || punctuation.some(ch => otherWord.includes(ch));
            let haveNumbers = numbers.some(ch => thisWord.includes(ch)) || numbers.some(ch => otherWord.includes(ch));

            if(i > startIdx && !areEmpty &&
               !areStopWords && !areProperWords &&
               !havePunctuation && !haveNumbers) {
                tokens[i] = otherWord;
                tokens[otherIdx] = thisWord;
            }
        }
        this.data = tokens.join(" ");
    });
    $(tagTypes.join(":not([fricked]),")).attr("fricked", "true");
}, 500)();