bleep
n.— «Affectionately called a “bleep”—because that is all it seems to do from dawn until dusk and throughout the night as well—it symbolises the fear of the unknown for the wary junior doctor.» —“Trust me, I’m a junior doctor: for some problems there is no treatment” by Max Pemberton Telegraph (United Kingdom) 2006, July 17. (source: Double-Tongued Dictionary)