Literary idiom used to describe someone who has a quick mind and can finish a piece of writing in a very short time. It literally refers to someone leaning against a horse while writing a writing a long text instantly.

Describes someone with quick wit who can write long articles or poems very rapidly, like writing a thousand words while leaning on a horse. See also [[倚马可待|倚馬可待|yi3 ma3 ke3 dai4]].