An interjection used when one sees rather scrumptious looking bootay, tittay, or coochay.
Means nothing unless both hands, open, with fingers straight, are held above the head, arms slightly bent and in a narrow Y shape.
A cutie with a booty is walking down the street:
Guy A: Looks to Guy B.
Guy B: Nods.
Both: Profundo!!! (While raising hands above head in the fashion described above)