Maybe ask her for something small so she feels like she’s helping me too?
If they always insist on paying, yeah, that’s what I usually do. Typically phrase it something like, "No thanks, I don’t really need the money, but I do like [biscuits | cookies | whatever her cooking specialty may be]. Helps if you know they like to cook, though.
Saying “Luigi” or even that you agree with him: ✅ (Fine)
Using “Luigi” as a verb and/or dog-whistle call to violence (which is a TOS violation on LW and other instances): ❌ (Not Fine)
Edit: Added text in case the emojis don’t show up.