Cabeza de termo
A slang term popularized by soccer legend Diego Maradona to describe someone who is thick-headed, stubborn, or slow-witted. It characterizes the person as having a hollow or sealed-off mind, much like a thermos flask. (Diego Maradona was a world-famous Argentine soccer player).
How is it going, you cabeza de termo! said Diego Maradona as he greeted the singer Rodrigo Bueno in Havana. (Rodrigo Bueno was a famous Argentine singer of the music genre known as cuarteto).
Automatically translated from Spanish
Argentina