According to Sadie Boettner-the definition of a blessing is Jenny Yarbrough.  Here she is.

If you ever have any doubt about your identity or who your are – simply ask your friends.  They will tell you who you are.  They will let everyone know your identity.  They are the expert when it comes to your identity.  Jenny’s definitely a blessing and you need to be blessed by her.  Find her on Facebook and then be blessed.