Māma xiàozhe jiào tā xiǎozānggui, bǎ tā bào qù xǐzǎo.
Mom called her a little grub with a laugh and carried her off for a bath.
Tips
usage
Affectionate, never insulting — same family as 小笨蛋 'little dummy,' 小馋猫 'little glutton.' The 鬼 here is the playful 'imp' sense, not 'ghost.' Used by parents/grandparents about messy small kids.