Used in slang to mean having sex with someone or, in criminal contexts, to kill or off someone. It also retains its literal meanings like brushing teeth or hair, or planing wood.
You better not mess with those people because they are capable of having you cepillar for any little thing.
To excessively flatter someone, usually to gain their favor or obtain a benefit. It is commonly used when someone is brown-nosing a boss or teacher for selfish reasons. (The word literally means to brush, as in polishing someone's image).
Stop trying to cepillar the manager so much, we all realized you just want him to give you your vacation in December.
To have vigorous penetrative sex with someone, especially with fast, repetitive motions. (The literal meaning is to brush, referring to the back and forth friction of the act).
To suck up to or brown-nose someone excessively to get a favor or stay on their good side for future benefit (literally means to brush, as in polishing someone up).
Sandra is disliked by the whole class because she spends all her time cepillando the teachers. I do not like cepillona people, you never know when they are being serious or when they are trying to manipulate you.
Used in schools and universities to mean flunking or failing someone in a course. It describes when a teacher or professor gives a student a failing grade after evaluating their work.
You wouldn't believe how the Chemistry teacher went overboard, he has cepillado almost the whole class in today's exam.