WIP
Jumbao
Etymology: "Jumbo" (Larger than usual - reference to it's weight for vs Celesteela matchups as well as implying a large fully evolved form) + "Baobab" (The species of tree CAP24 is based on)
Pronounciation: "JUM-bay-oh"
IPA Transcript: /ˈʤʌm.beɪəʊ/
Alright I reckon enough time has passed for that silly old joke to sink in, this time a proper submission!
There is also an additional layer to the name here; a reference to another tree called the Jumbay Tree (Leucaena leucocephala). This plant was promoted as a "miracle tree" because of its worldwide success as a long-lived, highly nutritious forage tree. It has also been described as a "conflict tree" because it is used for forage production but spreads like a weed in some places. Long-life and miracles lines up with the tree-of-life motif Pip's CAP24 has and the conflict side can loosely refer to the plant out-competing other plants; this plant is made of tougher stuff! Shimenawa rope were used by the highest ranking of the competitive sport of sumo-wrestling, the yokozuna.
In a similar vein the pronounciation of "Jumbao" may work as a reference to the djembe or jembe (JEM-bay), a rope-tuned skin-covered goblet drum played with bare hands, originally from West Africa. According to the Bambara people in Mali, the name of the djembe comes from the saying "Anke djé, anke bé" which translates to "everyone gather together in peace". The djembe can produce a wide variety of sounds, making it a most versatile drum. The drum is very loud, allowing it to be heard clearly as a solo instrument over a large percussion ensemble (sounds nifty as part of its cry right?)
EDIT: I'm using the British pronunciation for the words I'm using. It may be slightly different to say for those that use American English but I'm not sure.