2) Inability to read, write, or rap. Basically an imbecile.
Kevin Federline is many times confused with Roger Federer(A professional tennis player).
The theory behind this problem is that 2 individuals with similar last names became famous around the same time.
This type of problem has also happened in the past.
The word "Rush" became very popular in the 80's
The return of the hard rock band "Rush"
Other recent events...
Eva Longoria(Desperate Housewives)
Mike: Don't you mean Roger Federer?!