The action of a person who sits and stares at an object or at nothing at all for an extended amount of time. They tend to drop their jaw, not react to things going on around them and possibly drool.
Student 1: Did you hear what would be covered on the exam?
Student 2: Nah man, I was tarding out like crazy.
silly invention of public schools to make kids get to class faster.
The Idea: Assistant Principals chill in the halls during passing time. Then when the tardy bell rings, the teachers lock their doors and anyone left in the halls is "swept" to an AP's office and given a tardy. That tardy slip is your pass into class.
Mostly it just pisses everyone off an encourages rebellion.
Dude1: Lets organize a school wide tardy sweep to overflow the system.
Student Body: YA!
Next Day
Principal: Stop promoting this, or else.
Dude1: Fuck.