a short interesting or amusing account about a real person or event
Explanation:
Grandma came home from her afternoon walk through the neighborhood and she told you a funny anecdote. Apparently a little girl walked up to her and held her hand because the little girl thought Grandma was actually her grandma as they were wearing the same shirt! The little girl then found her actual grandma.
See, an anecdote is just a quick little story that usually starts out with, "guess what just happened?"