A backstabber or person who betrays others. It is a highly vulgar insult, literally meaning cock-sucker, used to describe someone who lacks loyalty or principles.
Pablo stole ten euros from Bernardo, what a lambebicho.
A person who betrays their country or another person, a sellout or a snitch (literally meaning homeland seller, it originally refers to politicians who betray national interests but is common slang for any backstabber).
Milenka is such a Vende Patria, she told the teacher we cheated on the test.
To backstab or sabotage someone by badmouthing them behind their back, usually to make yourself look better or steal their position. (The expression often appears as serruchar el piso, literally meaning to saw the floor out from under someone).
A: Maria serruchó my floor with the boss. B: Oh no, she is so two-faced.
A snitch or rat who compulsively exposes others, whether the information is true or not. Unlike a gossip who just talks behind people's backs, a buchón takes the info directly to the people who will be most pissed off or hurt by it. It is usually used as a harsh insult.
Remember my cousin Ramon? I had not seen him in five years, ran into him at a bar while I was with a client, and when I got home I had a huge mess because he had already called my wife and my mother to say I was kissing a woman and that we were holding hands. The damn guy turned out to be a total buchón!
A snitch or tattletale who reports others' mistakes or rule-breaking without being asked. Unlike a spy who acts for money or a cause, a buche acts out of personal interest and only when convenient. They are less compulsive than a buchón, choosing their moments to tell on others for their own benefit.
They padlocked the balcony door; some buche told them we were going out that way to smoke.
A two-faced person who plays both sides or tries to have it both ways. Someone who switches loyalties to benefit themselves, acting like they are with both the good and the bad, or God and the devil at the same time.
1. That anfibio wants to hog everything. 2. The guy who was a Licey fan and switched to being an Escogido fan in the middle of the season (Licey and Escogido are the two major rival baseball teams in Santo Domingo).