Explanation

The idiom "butterflies in someone`s stomach" means to feel very nervous and restless.

The idiom "butterflies in someone`s stomach" means بہت ہی گھبرایا ہوا یا پھر بہت ہی بے چین

For example:

Tomorrow is my first day at a new school, I have butterflies in my stomach.

کل میرا اسکول میں پہلا دن ہے، میں بہت ہی گھبرایاہوا/بے چین ہوں۔

Explanation

Be at daggers drawn means سخت مخالف یا دشمن

The countries are at daggers drawn about the use of the canal that they share.

Explanation

As fit as a fiddle means صحتمند یا مضبوط 

My grandfather is 90 years old, but he is still as fit as a fiddle.

میرے داد کی عمر نوے برس ہے لیکن وہ ابھی تک صحتمند ہیں۔

Explanation

Give someone or something the nod means to indicate someone or something as one's choice or show one's approval of something or someone.

Explanation

In the pink means صحتمند

For example:

Do you remember last night you were really in the pink?

کیا آپ کو یاد ہے گزشتہ رات آپ بالکل صحتمد تھے؟

Explanation

Couch Potato means a lazy and inactive person

especially : one who spends a great deal of time watching televisions .

Couch potato means ایسا سست انسان جو سارا دن ٹی وی دیکھتا ہو

Explanation

An armchair job means good income job with high comfort.

Explanation

The idiom "Pull yourself together" means to become calm and behave normally again after being angry or upset.

Pull yourself together means ناراض یا غصے میں آجانے کے بعد پرسکون ہونا

He was unable to pull himself together after he lost his entire family in the plane crash. 

Explanation

The idiom "Pull someone's leg" means کسی کے ساتھ مذاق کرنا یا تنگ کرنا

For example:

I told you there was a monster in the closet, but I was just pulling your leg!

میں نے تمہیں بتایا تھا وہاں الماری میں ایک مونسٹر ہے لیکن میں تو بس تمہارے ساتھ مذاق کررہا تھا۔

Explanation

Pay on the nail means pay on the spot.

For example:

Goods will be delivered if you pay on the nail.