"Shooting bull" is a commonly used phrase that refers to talking nonsense or boasting about a particular topic. This expression is typically used in a negative context, where someone is trying to impress others with their knowledge or skillset falsely. Some of the synonyms for "shooting bull" include bragging, blustering, posturing, exaggerating, or simply lying. These words ultimately convey the same message and suggest that someone is not being truthful or honest with their communication. It is essential to be aware of the language that we use in our conversations and ensure that they reflect our beliefs and values accurately.