Came from the SLC in Goshen, NY. Originally meant to stick a rolled blunt in any type of tube or hole so monster rips can be taken, but more formally used to mean smoking a blunt out of a bong.
When a legal midget (under 5'0") gets run over by a regular sized person, causing them to slide on the floor, possibly causing eye damage, hense the term, blindslided.
Wallace blindslided poor Kendall into the floortoday. If short people were considered legal citizens she could of had a case in the court of law.