Talk:olla pää kuin seula

, is olla pää kuin seula idiomatic? PUC 00:04, 22 March 2020 (UTC)
 * Perhaps, but I don't think the term is used like that. It's more common to use in something like  (fixed subject, like in ). &mdash; surjection &lang;?&rang; 11:09, 22 March 2020 (UTC)