Grito
A Grito is a common Mexican interjection, used as an expression.Characteristics
This interjection is similar to the ' or ' of the American cowboy during a hoedown, with added Ululation trills and onomatopoeia closer to "aaah" or "aaaayyyyeeee", that resemble a laugh while performing it.
The first sound is typically held as long as possible, leaving enough breath for a trailing set of trills.Usage
The Grito is sometimes used as part of the official remembrance of the Shout of Dolores, during the celebration of the Mexican Independence Day.
Grito Mexicano has patriotic connotations
It's commonly done immediately prior to the popular Mexican war cry: "¡Viva Mexico, Señores!"