She kept cancelling on me and then I got dumped, but then a week later we exchanged texts and I ended up fuckgiving the shit out of her. We haven't spoken since...
The action of saying or thinking "fuck it," then proceeding to either leave the current situation one is in or moving forward and finishing an action, not caring about the outcome and/or consequences.
"I've been fuckiting a lot when it comes to my school projects." "They don't seem to really matter in the long run, so I don't put any passion into them."