poner la mano en el fuego*

* to put a hand in the fire

Spanish Spain

Expression USED On Rare Occasion BY Adults

Used to say that you believe in someone or something so strongly that you would put your hand in a fire and you wouldn't burn yourself.

"Pondría mi mano en el fuego por él y sé que no me quemaría."

"I would put my hand on a fire for him and I'm sure I wouldn't burn myself."