The phrase "shoots bull" is often used to refer to someone who talks at length without really saying anything of substance. Synonyms for this phrase include "spouts nonsense," "rambles on," "blathers," "spews drivel," and "chatters aimlessly." These terms can be used to describe both intentional and unintentional instances of speaking without purpose. Whether in casual conversation or formal debate, it is important to use language carefully to convey your point clearly and effectively. Therefore, avoiding "shooting bull" and speaking concisely and with intention can improve communication and avoid misunderstandings.