This, then, - so let them taste it - the drink of burning distress and ice-cold wind. (Distress they caused others and insensitivity they showed toward oppression and injustice (78:25))
This is it! Let them taste it! Scalding water (burning ideas pertaining to the identity-self) and purulence (situations resulting from actions based on the idea of being the body)!
Sayyed Abbas Sadr-Ameli
This water is boiling and pus, so let them taste it.
Al-muntakhab fi tafsir al-Qur'an al-Karim
As for tasting, they shall experience it in the form of a decoction of the offensive suppurating burns boiling hot and/or ice cold