When a person (usually a female) does something really trashy and is not only proud of it but brags about it like it's the greatestachievement of their life.
Any packaged conglomeration of trash used as a weapon against a motorist. A trashogram may have insults written on it. It is generally thrown at or into the vehicle of an erratic or dangerous driver.
When the popular social media website becomes trash and you feel like it is eating up a lot of your important time or invading your life then it becomes “Trashagram”.