Index: src/wp-admin/js/password-strength-meter.js
===================================================================
--- src/wp-admin/js/password-strength-meter.js	(revision 25617)
+++ src/wp-admin/js/password-strength-meter.js	(working copy)
@@ -1,6 +1,64 @@
-function passwordStrength(password1, username, password2) {
+/**
+ * Determine the strength of a given password
+ *
+ * @param string password1 The password
+ * @param array blacklist An array of words that will lower the entropy of the password
+ * @param string password2 The confirmed password
+ */
+function passwordStrength( password1, blacklist, password2 ) {
+	if ( ! jQuery.isArray( blacklist ) )
+		blacklist = [ blacklist.toString() ];
+
 	if (password1 != password2 && password2.length > 0)
 		return 5;
-	var result = zxcvbn( password1, [ username ] );
+
+	var result = zxcvbn( password1, blacklist );
 	return result.score;
 }
+
+/**
+ * Builds an array of data that should be penalized, because it would lower the entropy of a password if it were used
+ *
+ * @return array The array of data to be blacklisted
+ */
+function buildUserInputBlacklist() {
+	var i, userInputFieldsLength, rawValuesLength, currentField,
+		rawValues       = [],
+		blacklist       = [],
+		userInputFields = [ 'user_login', 'first_name', 'last_name', 'nickname', 'display_name', 'email', 'url', 'description', 'weblog_title', 'admin_email' ];
+
+	// Collect all the strings we want to blacklist
+	rawValues.push( jQuery( 'title' ).text() );
+	rawValues.push( document.URL );
+
+	userInputFieldsLength = userInputFields.length;
+	for ( i = 0; i < userInputFieldsLength; i++ ) {
+		currentField = jQuery( '#' + userInputFields[ i ] );
+
+		if ( 0 == currentField.length ) {
+			continue;
+		}
+
+		rawValues.push( currentField[0].defaultValue );
+		rawValues.push( currentField.val() );
+	}
+
+	// Strip out non-alphanumeric characters and convert each word to an individual entry
+	rawValuesLength = rawValues.length;
+	for ( i = 0; i < rawValuesLength; i++ ) {
+		if ( rawValues[ i ] ) {
+			blacklist = blacklist.concat( rawValues[ i ].replace( /\W/g, ' ' ).split( ' ' ) );
+		}
+	}
+
+	// Remove empty values, short words, and duplicates. Short words are likely to cause many false positives.
+	blacklist = jQuery.grep( blacklist, function( value, key ) {
+		if ( '' == value || 4 > value.length ) {
+			return false;
+		}
+
+		return jQuery.inArray( value, blacklist ) === key;
+	});
+
+	return blacklist;
+}
\ No newline at end of file
Index: src/wp-admin/js/user-profile.js
===================================================================
--- src/wp-admin/js/user-profile.js	(revision 25617)
+++ src/wp-admin/js/user-profile.js	(working copy)
@@ -9,7 +9,7 @@
 			return;
 		}
 
-		strength = passwordStrength(pass1, user, pass2);
+		strength = passwordStrength( pass1, buildUserInputBlacklist(), pass2 );
 
 		switch ( strength ) {
 			case 2:
Index: tests/qunit/wp-admin/js/password-strength-meter.js
===================================================================
--- tests/qunit/wp-admin/js/password-strength-meter.js	(revision 25617)
+++ tests/qunit/wp-admin/js/password-strength-meter.js	(working copy)
@@ -77,14 +77,14 @@
 		}
 	});
 
-	test( 'username in password should be penalized', function() {
+	test( 'blacklisted words in password should be penalized', function() {
 		var allowedPasswordScore, penalizedPasswordScore,
 			allowedPassword   = 'a[janedoe]4',
 			penalizedPassword = 'a[johndoe]4',
-			username          = 'johndoe';
+			blacklist         = [ 'extra', 'johndoe', 'superfluous' ];
 
-		allowedPasswordScore = passwordStrength( allowedPassword, username, allowedPassword );
-		penalizedPasswordScore = passwordStrength( penalizedPassword, username, penalizedPassword );
+		allowedPasswordScore = passwordStrength( allowedPassword, blacklist, allowedPassword );
+		penalizedPasswordScore = passwordStrength( penalizedPassword, blacklist, penalizedPassword );
 
 		ok( penalizedPasswordScore < allowedPasswordScore, 'Penalized password scored ' + penalizedPasswordScore + '; allowed password scored: ' + allowedPasswordScore );
 	});