1. To run someone down from behind and tackle them, much as a quick bird of flight would chase down a dog.
2. To screw over or get screwed over, often by ones own close friends. See Biddle.
3. To harass to no end by the repeated utterance of a nonsensical phrase.
1. "Did you see last night? Addison completely bird dogged Derek in the nuts even though he's crippled!"
2. "That Justin kid, I bird dogged him pretty bad last night, I think he wants to kill me."
3. "Damnit Berman! Stop bird dogging!"