diff --git a/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst b/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
index af4b1358..1c146f0f 100644
--- a/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
+++ b/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
@@ -195,22 +195,21 @@ value. However, if ``A`` is not set, the variable is set to "aval".
 Setting a weak default value (??=)
 ----------------------------------
 
-It is possible to use a "weaker" assignment than in the previous section
-by using the "??=" operator. This assignment behaves identical to "?="
-except that the assignment is made at the end of the parsing process
-rather than immediately. Consequently, when multiple "??=" assignments
-exist, the last one is used. Also, any "=" or "?=" assignment will
-override the value set with "??=". Here is an example::
-
-   A ??= "somevalue"
-   A ??= "someothervalue"
-
-If ``A`` is set before the above statements are
-parsed, the variable retains its value. If ``A`` is not set, the
-variable is set to "someothervalue".
-
-Again, this assignment is a "lazy" or "weak" assignment because it does
-not occur until the end of the parsing process.
+The weak default value of a variable is the value which that variable
+will expand to if no value has been assigned to it via one of the other
+assignment operators. Here is an example::
+
+   W ??= "x"
+   A := "${W}"
+   W ??= "y"
+   B = "${W}"
+   W ?= "z"
+
+After parsing we will have::
+
+   A = "x"
+   B = "z"
+   W = "z"
 
 Immediate variable expansion (:=)
 ---------------------------------