ser un hueso
ser un hueso
intransitive verb phrase
1. (colloquial) (to be something requiring work) 
a. to be a slog (colloquial) 
Lijar la pared es un hueso. ¿Por qué no contratamos a un carpintero?Sanding the walls is a slog. Why didn't we hire a carpenter?
b. to be a bear (colloquial) (United States) 
Esto es un hueso. Hagamos algo divertido.This is a bear. Let's do something fun.
2. (colloquial) (to be a strict professor) 
a. to be a tough nut (colloquial) 
El profesor Aranda es un hueso. Nadie aprobó el examen.Professor Aranda is a tough nut. Nobody passed the exam.
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