2 files changed, 25 insertions, 1 deletions
diff --git a/lib/irb/command.rb b/lib/irb/command.rb
index 4dc2994ba9..ef93049237 100644
--- a/lib/irb/command.rb
+++ b/lib/irb/command.rb
@@ -196,7 +196,12 @@ module IRB # :nodoc:
         :irb_history, :History, "command/history",
         [:history, NO_OVERRIDE],
         [:hist, NO_OVERRIDE],
-      ]
+      ],
+
+      [
+        :irb_disable_irb, :DisableIrb, "command/disable_irb",
+        [:disable_irb, NO_OVERRIDE],
+      ],
     ]
 
 
diff --git a/lib/irb/command/disable_irb.rb b/lib/irb/command/disable_irb.rb
new file mode 100644
index 0000000000..0b00d0302b
--- /dev/null
+++ b/lib/irb/command/disable_irb.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module IRB
+  # :stopdoc:
+
+  module Command
+    class DisableIrb < Base
+      category "IRB"
+      description "Disable binding.irb."
+
+      def execute(*)
+        ::Binding.define_method(:irb) {}
+        IRB.irb_exit
+      end
+    end
+  end
+
+  # :startdoc:
+end