This is the 4910th most frequent Spanish word.
diarrea
Abnormally frequent and liquid bowel movements.
This usage of 'diarrea' directly refers to the physical condition of diarrhea in a medical context to describe symptoms.
Tengo diarrea desde ayer por comer algo en mal estado.
I have had diarrhea since yesterday due to eating something spoiled.
Here, 'diarrea' is metaphorically used to express a feeling of extreme nervousness or anxiety as a hyperbolic expression.
Me da diarrea pensar en hablar frente a tanta gente.
It makes me anxious to think about speaking in front of so many people.
In this sentence, 'diarrea' is used figuratively to describe a flow of excessive and often nonsensical information or content.