unass
v.— «“I’ll take ‘un-assing the A.O.’ to mean ‘helping up the arresting officer.’”…”Get a clue. The phrase is Army slang for ‘leaving the area of operations.’”» —“Re: getting rear ended” by geoffm@purplehaze.EBay.Sun.COM (Geoff Miller) Usenet: rec.autos.driving Nov. 15, 1990. (source: Double-Tongued Dictionary)
Further reading
In the 15th century, the word respair meant “to have hope again.” Although this word fell out of use, it’s among dozens collected in a new book of soothing vocabulary for troubled times. Plus, baseball slang: If a batter...
Eric from West Lafayette, Indiana, wonders which phrase is correct when referring to “making the grade” or “meeting expectations”: Is it cut the mustard or cut the muster? It’s the former, a reference to the strong...