when a man/woman violently and quickly fingers a vagina

To punch a vagina or asshole with one's fingers. Often in a rapid fashion, seldom precise.

Getting blasted in the anus or vaginal area by the ring or middle finger.

fingerblast
The act in which a male inserts two or more fingers as far as possible into a woman's vagina, then pumps the fingers back and forth vigorously until the female blasts her sweet paella juice all over the living room

Since girls pockets are to small, they store their fresh fish in their vaginas. So when you ask for a snack, you reach into the vagina to find fresh snacks, and they call this finger blasting, as it's a blast of flavor.

A group of 4 weebs who are fill in for clan scrims in the mobile game, Standoff 2.

The act of inserting two fingers into a vagina many times at a high speed for a few seconds