heat fire 

Weed that is extremely dank

Also can describe food etc.

That shit is that heat fire!

heat fire by CDADDY123 December 23, 2009

heat from fire, fire from heat 

A phrase that transgender people use in voice training in order to stabilise resonance (R1) after finding the correct one. The phrase is created by Zhea aka Z from TransVoiceLessons and is popular in the trans voice training community, and widely known in the lgbt+ community in general.

Z (raising her R1 with voiceless 'h' sounds): Hhh... hhh... hhhh... hhhhhaa, heat from fire, fire from heat. Okay, cool. Now I'm using that resonance.

heat from fire, fire from heat by Ms Moongirl September 10, 2021

That Fire or heat 

pertaining to good weed or other drugs

Yo dude that wood is that fire.

That Fire or heat by trent October 5, 2003