under wraps
adj.— «Stevie Wonderboy’s performance was so dominating that the victory was completed with jockey Garrett Gomez having a firm hold on the reins—”under wraps” in racing parlance—because having the colt further extend himself was obviously unnecessary.» —“It’s a wondrous end to Del Mar’s $608 million meet” by Hank Wesch in Del Mar Union-Tribune (San Diego, California) Sept. 8, 2005. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...