Defining the drive by

I found a great post on FAQ: The art of the "Mommy Drive-by" from Kerri at Kerri's Life. Here are a few of her questions and answers . . .

Q: What is a "mommy drive-by?"
A: A "mommy drive-by" is a harsh criticism, fired verbally by one parent and aimed straight at the heart of a second parent. As the term implies, it is normally a mommy-to-mommy incident.

Q: Why are mommy drive-bys committed?
A: The sole purpose of a mommy drive-by is to hurt the target. The offender may tell you that her intention was to educate, appeal to, or persuade the target to see/accept/succumb to her point of view, and she may believe that herself, but in reality, the intended consequence is to humiliate, belittle, and/or insult the target's fitness as a parent.