Origin: Baby Lingo – shee shee stands for the act of passing urine.
The phrase shee shee is usually used on toddlers. It is used to ask the toddlers if they want to urinate.
The continuous whistling “shee” sound with a short interval pause is used to urge the toddler to urinate.
Parents to toddler: “Ah boy do you want to shee shee? Come boy, I whistle for you to pass urine ah…sheeeeeee…..sheeeeeeeee“