Joe Bloggs was the name of a clothing brand which became popular during the
Madchester baggy era of the late
1980's.
Even though no-one has actually worn Joe Bloggs clothes since about
1993, teachers in Britain (due to a lack of imagination) continually refer to this as an example name.
Teacher: "If I have nine
apples and Joe Bloggs takes away three apples, how many do I have left?"
Pupil: "Who the fuck is this Joe Bloggs? Sounds like a
pikey bastard if he has to steal apples."