把尿

to support a child (or invalid etc) while he or she urinates

to hold / to contain / to grasp / to take hold of / handle / particle marking the following noun as a direct object / classifier for objects with handle / classifier for small objects: handful

handle

to hold; to grasp / to hold a baby in position to help it urinate or defecate / handlebar / classifier: handful, bundle, bunch / classifier for things with handles / (used to put the object before the verb: 把[ba3] + {noun} + {verb})

to urinate / urine / CL:泡[pao1]

(coll.) urine

to have endured all sorts of hardships (to raise one's children) (idiom)