"Too Good Man" , as in to agree with someones superior or Dominant Behavior or action that they are doing. Stating in which they are "Too Good" for them and themselves. Usually done with friends or counterparts.
Statement 1: " Hey I got a high score on this Game"
Reply: "Oh TGM"
Statement 2: "I bought the last Meat Pie"
Reply:" TGM, I wanted one as well!"