It's a somewhat-common term (at least in my sub-bubble) for individuals with PDA traits.

I got the term from the PDA societies flyer (here in germany PDA is quite unknown and one of the best ressources in german is the german translation of that flyer. sad...): https://www.pdasociety.org.uk/wp-content/uploads/2021/04/What-is-PDA-booklet-website-v2.1.pdf

I cite:

The giant panda is our ambassador, since they also need a tailored approach in order to thrive, and the letters P A N D A also provide a useful summary of helpful approaches …

PICK BATTLES

• minimise rules
• enable some choice and control
• explain reasons
• accept that some things can’t be done

ANXIETY MANAGEMENT

• use low arousal approach
• reduce uncertainty
• recognise underlying anxiety and social/sensory challenges
• think and plan ahead
• treat meltdowns as panic attacks: support throughout and move on

NEGOTIATION & COLLABORATION

• keep calm
• proactively collaborate and negotiate to solve challenges
• fairness and trust are central

DISGUISE & MANAGE DEMANDS

• word requests indirectly
• constantly monitor tolerance for demands and match demands accordingly
• doing things together helps

ADAPTATION

• try humour, distraction, novelty and role play
• be flexible
• have a Plan B
• allow plenty of time
• try to balance the amount of “give and take”