1. A social networker who comments on other users' profiles; his/her only intention, however, is to entice that user to comment on his/her profile.
2. A social networker that unabashadly asks other users to comment on his/her profile.
3. A pun of the phrase "begging the question", used to describe a logical fallacy.
1. Grendal sent me a message on my MySpace, but I'm sure she's just begging the comment.
2. OMG, you should look at my page and comment my new pics. You haven't left me a comment in ages! Comment comment comment, or I'll kill myself! Why haven't you commented, yet?