1 definition by K-

Top Definition
(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

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