外快 wàikuài extra income Definitions Defs Origin Strokes Stroke Words Sentences Sents wàikuài extra income 外 wài determineradverb other other; additional; separate from what has already been mentioned or the group one belongs to快 kuài adjectivenoun happy pleased; elated; joyfulwàikuài rake-off 外 wài noun unofficial unofficial; informal; not part of the standard or formal version of something快 kuài satisfied to one's heart's content; gratified by having a desire or grievance fulfilled