Agent smiths differ from the other Agents

[Metalogic]

Oracle: You're a bastard.
Smith: You would know, mom.

I actually brought that up back in DN1.

http://forums.station.sony.com/mxo/posts...6300008545

Apparently it's suppose to be an insult.

It's a modified "your momma" joke. In this past, this was a retort from someone who called you a bastard, a fatherless son. It basically means your mom sleeps around.