The GTD suckmyballs is a next-gen ship, though. It uses a new naming convention.
The GTA originally used Greek names, but the GTI tried to change that and use Norse names (Odin, Bragi, Huri). The GTVA soon changed back to Greek names, the NTF used the names of the Iceni, but the next-generation of ships will use offensive things like 'suckmyballs,' 'urmomsaslut,' etc.
However, the Vasudans are getting upset with this new naming convention (because they don't get the offensiveness of it), and are still naming their ships after Egyptian deities and stuff.