macroexpand

(macroexpand form)

Repeats macroexpand-1 on the top-level form until it stops expanding, and returns the result plus the same expanded-p second value. Like macroexpand-1, only the operator position is expanded — macro calls in subforms stay unexpanded — the environment argument is ignored, and on the compilation path only a literal quoted argument is folded to its expansion (a computed one answers the form unchanged, or signals when the form is a macro call).

Subforms are not walked: