Lana

Just like in English, there are many words that can mean: money. Spanish is no different and it can vary from country to county on what the street word for money is. Lana is one of the most common street words for money in the Spanish language. Literally it means wool, but most people will understand it to mean money as well, especially if you are using it in the proper context. The slang use of lana for dinero dates from the colonial period, between the 16th and early 19th century. At that time Spain controlled all of Mexico and Central America, and most of South America. Sheep did not exist in the Americas before the Spaniards brought them, but conditions here were ideal for raising sheep. Given the great deman for wool in Europe, people who had lots of sheep also had lots of money. The wool industry is no longer as important, but the association of lana to mean money is still very common today. Here are some examples of how you can use this slang word:

-Necesito mas lana para comprar el video
-Ese hombre debe tener mucha lana, mira su carro.
-Se me olvido la lana en la casa!