def 1: "to be back on one's bullshit is to return to a state at which you were your truest and most vocal self with a renewed focus on authenticity and a decided lack of fucks given for others"

def 2: "it is the act or process of accepting your inevitable return to the self-defeating and impulsive behaviors that have historically hindered your self actualization but from which you cannot, and no longer desire to, escape."

When you think up something brilliantly righteous while baked.

To be remotivated to seek success. Resurgence in life and motivation. The next level of finesse

To be "back on your bullshit" means to have recently come in contact with an ex-partner or begin to feel nostalgic for them or your relationship together, even after you say you've moved on.