Spew means to throw out or release something from inside your body, often violently. When someone's sick, they might spew up their lunch.
When we talk about food, it's common to say that a certain dish can make you want to spew. If someone mentions a really strong smell coming from the kitchen, they might be talking about food that's making them feel like they're going to spew. The word spew is also used in nautical contexts - for example, if a ship is sailing through rough seas and something starts spewing out of its cargo hold, it means water or other debris is being thrown out uncontrollably.
How common is "spew"?
Word spew is considered rare in modern English. It has a balanced usage among all categories: speech, fiction, newspapers and academic texts.
Definitions
verb
(transitive) To eject forcibly and in a stream,
(intransitive) To be forcibly ejected.
(transitive) To speak or write quickly and voluminously, especially words that are not worth listening to or reading.
(intransitive) To be written or spoken voluminously.
(intransitive, informal) To vomit.
(intransitive) To ejaculate.
Example: I rise at eleven, I dine about two, I get drunk before seven, and the next thing I do; I send for my whore, when for fear of a clap, I spend in her hand, and I spew in her lap
(intransitive, leather-working) To develop a white powder or dark crystals on the surface of finished leather, as a result from improper tanning.