Problem with 'full-time except for work' is that it's an oxymoron, however I get what you mean, I am guilty of having said that in the past and the reason is this.
Ok, so you are not fulltime, we know that, except when I was 'part time' it was serious, I did absolutely everything as a woman (just couldn't do work just yet, had to change job and settle in a bit), so I did well over a year where I faced every single situation as a woman.
Yes I was part time, but the problem is a lot of part timers pick and choose and often go to male for trickier situations, I didn't. I think 'full-time except work' although clearly wrong kinda separates from the non serious.
So when people say I'm 'full-time except work', I realise it's not the correct wording but I understand the meaning behind it.
And because my experience outside work was the real deal, it set me up well for full-time, work went smoothly because I was ready and prepared.
I think that's a very different experience to a lot of the part timers. How do you differentiate, without saying anything less than full-time is to be almost dismissed?