A "burp gun" is a slang term for a machine gun that fires rapidly and intermittently. Synonyms for "burp gun" may include "submachine gun," "assault rifle," "automatic weapon," "spray gun," or "machine gun." Each of these terms refers to a firearm that is designed for rapid firing and high firepower. The use of such weapons is heavily restricted, with ownership and use typically limited to military or law enforcement personnel. While "burp gun" may be a colorful and descriptive term for such a weapon, its use is generally considered inappropriate and disrespectful to the powerful and often deadly nature of these firearms.