Bristol Palin is going on the defensive via her Facebook account once again ... this time aiming her anger at fellow Dancing With The Stars castmate, Margaret Cho.

The comedian had written on her blog the following:

    "Sarah supposedly blames Bristol harshly and openly…for not winning the election, and so she told Bristol she 'owed' it to her to do DWTS so that 'America would fall in love with her again' and make it possible for Sarah Palin to run in 2012…"

Bristol's response wouldn't have been so bad ... except the last line of her Facebook post throws in a gay-related jab. Palin writes:

    "I will give my friend credit for creativity, and extra points for getting so many 'facts' wrong in so few sentences. Let me be blunt: my mom did not 'force' me to go on DWTS. She did not ask me either. The show approached me…

    Anyone who watched the show could tell I performed better, and I felt better about myself, when they were in the audience. I wanted to make them both proud, but politics had nothing to do with it. Loving my parents had everything to do with it….

    You say you 'don't agree with the family's politics at all' but I say, if you understood that commonsense conservative values supports the right of individuals like you, like all of us, to live our lives with less government interference and more independence, you would embrace us faster than KD Lang at an Indigo Girls concert."

Not sure if Facebook is the best place for you to post your frustration, Bristol.