>>57244418>>57244428>>57244515Chu comes from チューチュー (chūchū), the onomatopoeia for the squeaking of a mouse.
Rai comes from 雷 (read as kaminari by itself and rai when part of other words). It translates to thunder, same as the move name, but thunder is the sound caused by lightning so it implies the presence of lightning.
Pika comes from ピカピカ (pikapika) which is the onomatopoeia for twinkling.
Goro comes from ゴロゴロ (gorogoro), which is a heavy rumbling sound like from thunder clouds.
Also in Japan, there's a set of three Sanrio characters known as Goropikadon (ゴロピカドン). They're three little oni named Goro, Pika, and Don from the Land of Thunder, and this is back when the oni style involved wearing yellow furs with black stripes, which is part of the design inspiration for Electabuzz. You can also see it in the characters of Urusei Yatsura. In case you were wondering where the don comes from in this name, it's an onomatopoeia often used in Japanese to indicate heaviness, a thump, boom, or impact, and it appears in Japanese Pokémon names like Lizardon (Charizard) and Sidon (Rhydon) to denote their size and heaviness.
