Rechinar (en. Grind)
/re.tʃiˈnaɾ/
Slang Meanings
To disagree in a discussion.
When they mentioned her ex, she started to screech.
Cuando mencionaron a su ex, empezó a rechinar.
To react negatively to a situation.
Even if you say nothing to him, his face is going to screech.
Aunque no le digas nada, su cara va a rechinar.