快马加鞭 kuàimǎjiābiān at top speed Origin Definitions Defs Strokes Stroke Words Sentences Sents 快马 快馬 kuàimǎ fast horse a fast horse; a post-horse加 jiā verb to add to add; to put in; to append; to place something on top of another; to perform addition in mathematics鞭 biān to whip to flog; to lash; to whip using a leather cord or stick