since when

idiom

—used to show that one is surprised and often angry, annoyed, or doubtful about what someone has said or done

"I'm a vegetarian." "Since when?"

"You told me to do it." "Since when did you start listening to me?"

Since when is it okay to cheat?

Examples of since when in a Sentence

Recent Examples on the Web

Others scoffed — since when arepostcards cooler than baseball? —Washington Post, 21 Mar. 2024

After all, since when does conflict and bluntness win you any friends? —EW.com, 1 Nov. 2023

But since when has the holiday card, that stressful annual performance of family joy, been entirely about reality? —Geoffrey A. Fowler, Washington Post, 13 Dec. 2023

To wit, since when do Republicans oppose shoring up U.S. weapons stocks? —The Editorial Board, WSJ, 4 Oct. 2023

Yes, Lowell was Menendez’s lawyer first, defending him in the earlier corruption case, but since when did Republicans care about the details when hurling mud? —Timothy Noah, The New Republic, 29 Sep. 2023

The first reference to bear bile used in this context appeared in a Tang Dynasty medical text in 659 A.D., since when use of the ingredient has spread across Asia. —Jessie Yeung, CNN, 3 June 2023

Here's what to know about the new hire: This will be Adrian Griffin's first head coaching job Though Griffin has been an assistant coach in the NBA for 15 years — since when the Bucks hired him immediately after his playing career — this is the first time Griffin will be a head coach on any level. —Jr Radcliffe, Journal Sentinel, 30 May 2023

The Lamborghini Urus Performante doesn't really make sense, but since when do Lambos obey logic? —Marc Urbano, Car and Driver, 1 May 2023