It's a thing in Ohma, agrarian society and all. Plants and animals were kind of a big deal, so names stemmed from them all over the village. Brom, Meg, Neph...

"Ridin' one seems bouncier than a horse from someone on the ground...though Ah reckon a playful chocobo works good for a coltish fella." She planted a fond 'boop' to his nose, chuckling at her own joke. "What's he do that's so rascally?"