ciento y la madre

1.
SpainLatin Americacolloquialinformal
- An emphatic expression meaning a very large, indefinite number; used as hyperbole to indicate 'many' or 'a whole lot'.
2.
SpainLatin Americacolloquialinformalemphatic
- A general intensifier applied to quantities or people to convey abundance or multitude, similar to 'countless' or 'a ton'.

Examples:

ES: ¡Si hay ciento y la madre!
EN: There are too many.
ES: Ya sé que no es algo estupendo, pero es que en el jacuzzi ya éramos ciento y la madre.
EN: I do not know makes even, so what one. But it was simple too narrow in my bed.
ES: Del siglo XVI, aquí habrán muerto ciento y la madre.
EN: From the 16th century. Hundreds of people will have died here.
ES: Está aquí ciento y la madre preguntando lo mismo.
EN: There's a million other people wondering the same thing.