Question

He messily grabbed the stack of clothes and went out of the room before he shoved everything back in her hands.

He spat back with venom." Be happy I'm not murdering you"

Answer 1

او مقدار زیادی لباس رو (بصورت) قاطی پاتی برداشت و قبل از اینکه همه چیزو دوباره تو دستاش بچپونه/جا کنه از اتاق بیرون شد.

با عصبانیت زیاد گفت "خیلی هم خوشحال باش که الان نمی کشمت".
 

Spit blood/venom 
Spit nails (US)
Spit tacks (Australian English)
​

to speak in an angry way, or to show anger:

I thought he was going to spit blood when he saw what had happened.