Dad Breath 

Horrendously nasty halitosis inherited as part of your genetic makeup. When your breath is so bad that it reminds you of your dad and your kids of their grandpa. Often worsened by the effects of alcohol, coffee, cigarettes, cigars, and / or dehydration - all of which you likely came by because of your father.

Holy smokes, Jeffrey, you've got some dad breath going there; please have some gum.

Dad Breath by Marcos 571 July 10, 2010

Heavy Dad Breathing 

When someone is breathing as hard and heavy as a dad who has just found out that his daughter has a boyfriend and he's coming over.

Woah man, you need to calm down with your heavy dad breathing.

Heavy Dad Breathing by ReallyBigFaggot May 7, 2020

dad breathing 

when you breathe weirdly loud, in a similar way to dads and old men do especially when being creepy

*breathes*
dude, why are you dad breathing?
sorry man, I have inefficient lungs

dad breathing by flower kiddo February 15, 2017