"Sepa la madre" is a Mexican expression used to show surprise, frustration, or anger. It can be considered offensive and is commonly used in a heated argument or when someone is upset.
Your brother's mother is your (mother, presumably)
The mother of my mother is my grandmother.
La tía es la madre de tu prima. La prima es la hija de la hermana de tu madre o de tu padre. Ella es también la hija de la esposa del hermano de tu madre o de tu padre o del esposo de la hermana de tu madre o de tu padre.
La madre de mi primo es mi tía.
It means "two identical girls from the same mother" in Spanish.
sepa la madre
sepa la madre lol
Sepa La Madre !
sepa la verga
Sepa la puta
Sepa La Chingada
It's slang in Spanish for "Who the f**k knows?" with a "who cares" connotation. A direct translation is difficult, but it's basically "who knows/who cares?" Not the kind of thing you'd say in front of Grandma though.
Probably chico de la madre. The son of the mother.
La Madre María was created in 1974.
The expletive "Madre mía" literally means "Oh my mother" and is the equivalent to "Oh my God".
Madre (Mother) is a feminine word. La Madre.
Mother's birthday Literally "Birthday of the mother"