Tucker gets his/her username from a quote in the Episode 92: Where Credit is Due (http://www.youtube.com/watch?v=6Ml_naWhnfk). When Tex mentions that she needs a hardline to move Sheila from the tank to the recently crashed ship, Tucker comes hauling ass out of a the base and tells her that he "has a hardline Tex can use. Bow chicka bow wow!"

Bowchickabowwow was already taken IIRC, but I was playing him in Amat before, and hurr hurr has a hardline could be doublespeak for erection. Lame, I know.