Nae hass
A Scots contraction of 'No hassle' - common in the north eastern parts of Scotland - though not unheard elsewhere.
That car had a fancy lock, but is was nae hass to nick it anyway.
Nae hass
A scaffy word that barely anyone says. It means fuck all and is put as a reply in a text that totally does not make sense.
Person 1: Learn to drive in the countryside, its easier.
Person 2: Nae hass.
Person 2: Nae hass.