In exactly the same way anything else got its name or meaning. The language "evolved" just the same as any other language did. You may as well ask where the word "word" came from.
The most obvious difference between the two is that frogs' eggs (frogspawn) are laid in bunches or clusters, whilst toads' eggs are laid in long strings.
you cant relly but if your playing capture the flag just set the falgs and they'll respawn there
or you could try put spawn points on one end then the opposite end of the map that way there all...