Questions about example sentences with, and the definition and usage of "Twerpy"

A: A twerp (noun) is an insignificant, unimportant and silly person. It is usually said about people who present themselves as having authority when they really do not. A person that exhibits these characteristics and is said to be twerpy (the adjective). Twerp is a common word, but twerpy is not. Twerp is often coupled with the word "little".
"Listen, you little twerp, I am the boss and you do not tell me what to do."
"That twerp at the complaints desk refused to help me."
"I am not letting some twerpy little bureaucrat tell me what to do."