So it could mean you are hurting that rabbit. In English we usually say the word "ouch" when something hurts.

And also what AJ Tutor said. You're giving him an ouchie is another way of saying that you're hurting him(In a babyish way. She's just softening her sentence and such and babying him, lol.) **Sorry for all of the messages**

Also, it's a baby~ish word people use for toddlers, when a toddler gets hurt. For example, if a toddler falls and scrapes his knee. Some people might say, ‘He has a scrape or a cut on his knee.’ But if you want to baby him, some might call the cut/scrape an ‘Ouchie/Owie/boo boo.’ Also, the little kid might say 'I have a boo boo/owie/ouchie' Honestly, I've only heard this in t.v shows. I've never (or rarely) heard anyone use those words in everyday life. Putting it in order (in my opinion). The last being the MOST babyish. -Ouchie -Owie -Boo boo

You watch the Looney Tunes Show?!?!?! I love that show!! I love Lola, lol.

You are hurting Bun Bun. 非常口语的。