Onomatopoeia is a literary device in which a word is named after the sound it is trying to describe. Splash, sizzle, and meow are all examples of onomatopoeia. So, let's look at the poem in question. Examples of onomatopoeia in this poem can include "sputter," "mutter," "snap," and "hummed." Hope this helps.
How to appeal to the audience/ readers
Tiki Tikki Tembo is a set in ancient China and invents an ancient Chinese custom whereby parents honor their first-born sons with long, elaborate names that everyone is obliged to say completely- no nicknames, no shortening of any kind- while second- born sons are typically given short, unimportant names.