My friend's mother's asian song is weird. It starts off with "Uno-dos-three!" Then, the song continues in Vietnamese. Wow. That song must be Spanglishnese.
Used by Hispanic-Americans(ME) to speak to other Hispanic-Americans whom can understand both Spanish and English. When a person can't remember how to say a word in spanish, they say in English, and vice-versa
Often used in the Latino community, or used by white kids trying too look cool and exotic.
Sometimes this will be the end result of a half-assed public school spanish education.
One small detail I noticed with Spanglish is that speakers use cognates a lot.
Look I can speak Spanglish,
Hola, mi amigo, do you want to go to the restaurante to get tacos and burritos?