TIE THE KNOT

English: They are going to tie the knot.

Spanish: Van a casarse.

Arabic:    سيعقدا قرانهما

PLAY IT BY EAR

English: Let's play it by ear.

Spanish: Vamos a ver qué pasa/esperemos a ver como van las cosas

Arabic:    دعونا نرتجل

AS OLD AS THE HILLS

English: He is as old as the hills.

Spanish:Es más viejo que Matusalén.

Arabic:    إنه طاعن في السن

A COLD FISH

English: He is a cold fish.

Spanish: Es un tipo frío/antipático.

Arabic:    هو شخص فظيع/قاسي القلب/متبلد الأحاسيس

NO SKIN OFF MY NOSE

English: It is no skin off my nose.

Spanish: No es asunto mío/A mí no me importa.

Arabic:    الأمر لا يعنيني

A CLOSE SHAVE

English: It was a close shave.

Spanish: Se salvaron por un pelo or de milagro.

Arabic:   كادت أن تقع كارثة / لقد نجونا بأعجوبة

BAG OF NERVES

English: He is a bag/a bundle of nerves.

Spanish: Es un manojo de nervios.

Arabic:   هو عصبي أو متوتر جدا