The local macro
current-super returns a value which can be passed to invoke to call a method in the superclass of the current method definition (like
super in Objective-C). When used within a define-objc-method form, instance methods in the superclass are invoked and when used within a define-objc-class-method form, class methods are invoked. The super-value has dynamic extent and it is an error to use
current-super in any other contexts.
LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual - 15 Feb 2015