一屁股 yīpìgǔ heavily Definitions Defs Origin Strokes Stroke Words Sentences Sents yīpìgǔ heavily 一 yī adverbnumeral [suddenness] Used before a verb to indicate that an action or situation occurs suddenly or unexpectedly.屁股 pìgu buttocks buttocks; bottom; backside; the common term for the area around the anus of humans or animalsyīpìgǔ serious 一 yī numeral whole whole; entire; throughout; all屁股 pìgu buttocks buttocks; bottom; backside; the common term for the area around the anus of humans or animals