Literal translation
to make an uproar
Meaning
to cause a scandal
Explanation
The verb estampa first means to imprint a mark by striking, as a blacksmith shoeing a horse, and by extension to print. An estampèu is the loud noise that comes with the action. Faire un estampèu therefore means to raise a racket, shout, cause a scene : a more vivid image than the plain word scandale because it directly evokes raised voices.