Praxe

Coimbra's Queima das Fitas parade. Nearly graduated medicine (orthodontology in this particular case) students and their decorated float.
Freshman being "baptized" by older students

The Portuguese term praxe ([ˈpɾaʃɨ] from the Greek πρᾶξις, praxis) describes the whole of student traditions in universities or, more often, to the initiation rituals freshmen are subjected to in some Portuguese universities.