Used pejoratively for someone who pretends to be a philosopher.
El filósofo, a pesar de ser un filosofastro, logró captar la atención de muchos estudiantes interesados en la filosofía.
The philosopher, despite being a pseudo-philosopher, managed to capture the attention of many students interested in philosophy.
El filosofastro que discutía en el café no parecía tener ideas profundas.
The pseudo-philosopher who argued in the café didn't seem to have deep ideas.