"clog up sth" in German to clog up sth. etw. verstopfen obstruieren Detailed translations for "clog up sth" to clog up sth. to clog up sth.(also: to block sth., to block up sth., to clog sth., to obstruct sth.) etw. verstopfen to clog up sth.(also: to block sth., to block up sth., to clog sth., to obstruct sth.) obstruieren{transitive verb}