To be grexy or to have grexiness is a concept that is heavily dependent on a person's perspective and biases whilst remaining rather attractive.
The word grexy is a neologism deriving from the ever famous cliché “Great minds think alike" and the constant reference to things being sexy. As a result of good looks and the continuous identical thoughts between speedy and electro grexy was born.
Person 1 & Person 2:
TB's are fags (said simultaneously).