This is why I love working in a blue collar field. Who needs professionalism. "Sorry boss, brain's fucked today. Explain it at me like I'm an apprentice."
I'm sorry. My brain is slow today and this needs to be done while I am fresh. We can go over it tomorrow.
I am too burnt out today.
I can't focus on that right now.
I am not functional enough for that.
I don't even make shit up and I am done with corpo speak. If they can't accept that, then they can get over it. We can discuss this like humans. If I can get you started, great, but if you want this done right, you will wait.
All of those make the person seem incapable or otherwise unable to fulfill their daily activities/roles. I dunno I think this wouldn't be great to say unless maybe you were legitimately sick. There are times you just gotta suck it up and get er done.
Not when you are a developer trying to write code for a critical part of the system. Sucking it up isn't going to make it magically happen and it will be a mess.
(I just recreated the original because that one is jpegged to hell and back. I used draw.io (used the original image as background), then exported as SVG, jammed it through SVGOMG, and then let ChatGPT do one last optimization because the font stuff was a bit too much, removed the whitespace and comments - boom: 700kb SVG)
"Just back from annual leave and trying to get upto speed" or "just had the closing meeting on an old project. Once I'm fully read in on this I will be able to take it on"
I find the blank, abyssal stare of one desperately trying to piece reality back together long enough to hold conversation, sends a pretty clear message
You really don't need to. Corpo speak is really just for speaking across different lines of business, like an engineer talking to a project manager or a sales exec talking to a customer. As long as you can express your concerns respectfully then it's not necessary.
So instead of saying something like "what you're asking for makes no sense, that's not my job" you'd say something like "I want to make sure we're both understanding the requirements. Send me what you're proposing and I'll get you pointed in the right direction."