How do I comment multiple lines in Clojure?
Clojure supports a #_
reader macro which completely skips the next form. This is mentioned on the page about the Clojure Reader. There is also the comment macro which has a similar effect, but is implemented differently.
Both the above require that the thing that you're commenting out is otherwise a syntactically correct S-expression.
Some Lisp dialects have a multi-line comment that can contain arbitrary text, but I don't see one for Clojure.