Spanglish is a well-known term that describes the linguistic behaviors of Spanish speakers, whose Spanish is uniquely influenced by the English language. Spanglish can also be defined as a "mixed-code vernacular that includes a range of linguistic phenomena, including code-switching." Although Puerto Rican linguist Salvador Tio coined the term "Spanglish" in the late 1940s, this language contact phenomenon has actually been used for the past 150 years, since the signing of the Treaty of Guadalupe Hidalgo. Some would consider Spanish a third language and others would dismiss it as unorganized slang. In modern society, Spanglish is classified as a popular, non-technical term. Although many variations of Spanglish exist and are widely denounced as a form of slang, Spanglish has proven to have its own flexible syntax, grammatical interface, and switching rules. Spanglish can be found in the speech of the Hispanic population of the United States. states, particularly in communities near the border, such as South Texas, and communities with heavy Latino influence, such as Miami and New York. Each Hispanic group has its own variation of Spanglish (Cuban, Dominican, Puerto Rican, Boricuan, Mexican, etc.) and can differ depending on where the region is located. San Diego, for example, borders Mexico, where many Spanish-speaking and Spanish-speaking citizens currently reside. Historically, the United States and Mexico both sought land near the border in the mid-1800s, but the two countries spoke opposing languages ​​(English and Spanish). “These were two countries radically different in terms of social, economic, political and cultural conditions.” (5. Jesus Velasco-Marquez). American and Mexican politicians we...... middle of paper ...... xical article in the other language. In a technical working environment, new age technology would require a code change since functions like "bipear" (to beep), "surfear" (to surf the web) and "deletear" (to delete a file) and not are known only in one language. In a home environment, bilinguals may code-switch to exclude monolingual children from private conversations. Spanglish has proven to be flexible across all communities that speak it, while following its own unique set of rule-governed patterns. Spanglish reflects an individual's environment, family and history. As the number of Hispanics increases in the United States, so does Spanglish and the study of it. “Companies have discovered it. It's on television, it's on the radio. Novels are written in Spanglish. Rap, rock, it's a kind of utopian or anti-utopian dream. »(8.Stavan)