flat
adj.— «Bryan Herta needed just four laps to get “flat,” racing parlance for feeling comfortable enough in a car to press the gas pedal and not let up.» —“Herta makes quick return” by Phillip B. Wilson Indianapolis Star (Ind.) May 17, 2004. (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...