also spelled h-e-a-s-i-n’. pronounced as he’s in.

definition: when you’re walking up the hill with someone and you’re out of breath.

If you out of breath by yourself it counts too
Ex: Zoe just got finished running a race and she was out of breath, instead of wheezing she was heezin’.
SOMEONE GET THAT BOY INHALER HE HEEZIN’
Get the Heezin’ mug.