The anecdotal fallacy is like an abusive ex, you wish you’d never have to see or hear from it again, but for some reason every time you go to get a coffee, there it is, in front of you in the line.
The definition of the anecdotal fallacy is using a personal example or isolated incident instead of proper argumentation or evidence. You see this in just about every single debate that deals with religion, in that sooner or later the religious person will ask you to just believe. God (or Jesus), Allah, and so on “are true to them”
An example could be:
Man 1: Just go up and talk to her man, nothing bad is going to happen. Last time I did, I got laid! (anecdote)
Man 2: Last week, a friend of mine did that, got maced, kicked in the balls and charged according to title IX.
The anecdotal fallacy is the spouse of the emotional argument. Often when it is used, it is followed by strong emotional appeals or other fallacies.