牙缝 yáfèng gap between teeth Origin Definitions Defs Strokes Stroke Words Sentences Sents 塞牙缝 sāiyáfèng something extremely small Describes a very small amount of food or an insignificant item, used metaphorically to mean something so small it would only get stuck between one's teeth.牙缝儿 yáfèngr gap between teeth the space, gap, or slit between the teeth