Spanish for "Brother-in-law"

It often is used as a taunt to a male with a sister, especially an attractive sister, basically implying that whoever is doing the name calling is having relations with the name receiver's "hot" sister.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.

“Brother in law” in Spanish but it is also used before you’re married. For example, your gf’s/bf’s brother is your cuñado, your sister’s bf is also your cuñado.