A wagon that transports 2 or more nerds is a roflwagon. A brothelwagon is normally though of as a wagon that transports 2 or more nerds to a whore house, however this is far from the truth.
It is infact a type of plankton, found only in the South China Sea.
Person 1: We must get to the brothel. Quick! To the brothelwagon!
Person 2: Why do we need plankton?