As part of the lively festivities to honor the patron saints of puerto rican towns, “monsters” (vejigantes) who wear bells and elaborate papier-mâché masks with multiple horns roam the streets threatening to hit people on the head with:

The answer is:

globes (vejigas in spanish)

Puertoricans organizes comparsas of vejigantes (people wearing globes), whose joke lies in lashing with large globes threatening to hit people on the head.

show the underlined word, so i can you. or spell it