TDSU
n.— «I even survived unmolested the sharing of a tent on an ITC camp (ITC = Initial Training Corps) in Wales with a housemaster who was to go on to achieve notoriety at another public school for his near manic enthusiasm for TDSU beatings (TDSU = Trousers Down, Shirt Up).» —by John Peel Margrave of the Marshes Oct. 17, 2005. (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...