Also urh. [Echoic. Cf. HURR v.] An inarticulate sound, uttered instead of a word that the speaker is unable to remember or bring out.
1846. O. W. Holmes, Rhymed Lesson, Poems (1896), 50/2. When you stick on conversations burs, Dont strew your pathway with those dreadful urs.
1891. Pall Mall G., 13 June, 2/1. The only pauses are the pauses of rhetoric, and the hesitating urh, urh is never heard.