A kid sister is a sibling who is a lot younger than you are. Born when you're already grown up.
Example: 10-15+ year age gap
My kid sister is graduating high school today. (Said by a 30 year old)
16👍 2👎
When you were just kidding, and want to inform someone that your sisterly bond is not broken; you will still talk, from time to time.
"dude i just shided and farded and camed"
"WTF"
"i'm kidding, we're sisters, we talk"
"oh thank baby jesus"
10👍 2👎