stufficating
When a person has too many things crammed into their home/apartment/car, to the point where you/they cannot breathe (metaphorically-speaking).
"Guy's place is stufficating with all this crap everywhere."
Stuffication
Over-eating
It was medically determined that the cause of death was stuffication.
Stufficated
Overwhelmed by possessions
She feels stufficated looking at her closet for which dress to wear.
Stufficated
Paralyzed by one's possessions.
She feels stufficated by all the clothes in her closet and can't decide what to wear.