The Canine Mutiny

Common positive exclamation in Latin American Spanish. Signals enthusiastic approval. Used in everyday informal speech across many countries in the region.

A humorous dismissal unique to this context. The math metaphor (anything times zero equals zero) is used as a creative insult meaning the person should disappear. Not a fixed regional idiom but a one-off expression whose meaning can't be derived without catching the joke.

When used as a standalone rhetorical question, this goes beyond its literal meaning of "for what purpose?". It expresses exasperation or irony, implying that something was useless or a waste of time.

Regalar in Latin American Spanish primarily means to give something away as a gift or for free, not to gift in a commercial sense. The key nuance is that it almost always implies no payment was involved, so "lo regalé" means the speaker gave something away without receiving anything in return.