The word "blimper" has no established meaning or definition in the English language, therefore there are no known synonyms for it. It is possible that "blimper" is a made-up or uncommon word, or perhaps a regional slang term. Synonyms are words that have similar meanings to a given word, but since "blimper" has no known meaning, it is impossible to provide synonyms for it. It is important for language users to be aware of the correctness and appropriateness of the words they use in communication, as using non-standard or obscure words can lead to misunderstanding and confusion.