On Wednesday, February 21, 2018 at 11:39:59 AM UTC-5, PeterWD wrote:
> On Wed, 21 Feb 2018 14:29:35 +0100, Paul Carmichael
> <***@gmail.com> wrote:
> >Duolingo tells me every day about now that I'm killing it and I must keep up my German streak.
> >What am I killing?
> This is a colloquial use of "killing" to mean doing something very well.
> OED "kill, v.":
> Draft additions June 2015
> trans. colloq. (orig. U.S.). To do or perform (something)
> impressively or conclusively. Also: spec. to do extremely well at
> (an examination subject). Frequently in to kill it. Cf. nail v. 6d.
> 1899 Werner's Mag. Jan. 376/2 Kill, to do easily.
> 1906 Dial. Notes 3 ii. 143 Kill, to pass an examination
> perfectly. ‘I killed math.’
> 1968 C. Baker et al. College Undergraduate Slang Study 147 Kill
> it, do well on an exam.
> 1982 Campus Slang (Univ. N. Carolina, Chapel Hill) Spring 5
> Kill, to do something extremely well: She killed that song.
> 2001 Snowboard U.K. Sept. 43 Hamish McKnight was killing it on a
> Burton Junkyard snowskate, pulling off big indys and even getting
> close to 360 flips over the first box in the boardercross.
> 2011 T. Rayburn Pulse (2012) xiv. Matt said you totally killed
> the interview.
> 2012 P. Coughter Art of Pitch ii. 48 You have to go out there
> and kill it, make them love us right now, and inspire the team.
> I suppose that what is/are killed is/are the difficultie(s) in doing
> whatever it is.
> Similarly there is "conquer" as in "He conquered Mount Everest".
It's usually intransitive, and usually confined to stand-up comedians. You
really killed tonight!