me and the teacher had an agitating discussing on politics.

where I encountered this word was  on the blogging guidelines for open lab.

 what I understood the word to mean was that you was agitated  with the situation or someone I didn’t know the word means  something totally the opposite . According to Webster it means to discuss excitedly and earnest.

No that I understand the meaning of the word I now can use this word and know the definition of this word when I encounter it again. Agitating to discuss or to stir up excitedly .