Ekans-ekans backwards is snake
Arbok-arbok backwards is kobra
Hitmochan-Chan is for Jackie Chan
Hitmonlee-Lee is for Bruce Lee
Snorlax-snolax minus lax is equal to snor
Bulbasaur Ivysaur Venusaur-the saur indicates that all 3 are dinosaurs
Clefairy-fairy stands for a fairy tale
Clefable-fable stands for a short story that teaches a lesson
Meowth-a cat purrs: meow
Abra,Kadabra,Alakazam-sounds like magic to me
Slowpoke,Slowbro-both are slow physically and mentally
Drowzee-drowsy stands for sleepy
Hypno-hypno plus tize is equal to hypnotize
Koffing-to cough
Weezing-a side effect
Vaporeon-v is for vapor
Jolteon-j is for jolt
Flareon-f is for flare
Jynx-jinx means something that causes bad luck
Aerodactyl-an extinct dinosaur
Goldeen-a goldfish
Seaking-the king of seas