zo link als een looien deur

== Dutch == === Etymology === Literally, “dangerous as a leaden door”. Compare gek als een deur (literally “crazy as a door”). This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term, particularly: === Adjective === link als een looien deur (not comparable) (colloquial, simile) very dangerous ==== Usage notes ==== While looien is a Hollandic colloquial variation of loden and not standard language, this is nonetheless the form generally encountered even in print. Versions with the standard spelling loden are vanishingly rare.