To slam your fingers with guided precision into the depths of a man, woman, or animal's pussy or puckering anal cavity with the ferocity of a thousand foot pounds.
Dude, last night I was cow tipping and got a sudden urge to fingerblast the head bull...surprisingly when he awoke he was rather pleased with my skill.
by Kszerian May 20, 2003
(v.) The act of stimulating a female's genital area by inserting however many fingers her gash can take, followed by a ferocious gyrating or pumping of the aforementioned fingers. Not to be confused with its gentler cousin, the finger bang.
"He finger blasted me so hard, I swear to God he ruptured my uterus."
by K- September 10, 2006
To jackhammer a womens minge, used to as a gentlemens segway into the shocker.
I went to Rick's on Garland in Spokane last night and met a women with a dead tooth, so i took her outside and fingerblasted the shit out of her in her bitchin camerow.
by Geoff Nailer November 11, 2006