teeth arm
n.— «Signals is a “teeth” arm (in British parlance)…. To be a Service Commander in Nigeria requires that one have the right type of commission (regular combatant) and belong to a “teeth arm” (i.e. Infantry, Artillery, Armour, Combat Engineers, Intelligence, or Signals).» —“Who is General AO Ogomudia” by Nowa Omoigui Omogui.com Sept. 20, 2004. (source: Double-Tongued Dictionary)
Further reading
Is there such a thing as a “neutral” accent, and if so what does it sound like? And that quirk in the way southern Californians talk about freeways. They’ll say things like take the 405 and get on the 8. Why the definite article...
Floordrobe is the new word for an old habit: piling your clothes on the floor instead of putting them away. The Oxford English Dictionary recently added an entry for it, defining floordrobe as “an untidy heap of discarded clothing left on the floor...