Using your fingers to pleasure a females vaginal region. Basically fucking a girl with your fingers.
by Roz October 28, 2003

Bro, my winky got BLASTED last night.
Oliver’s New Motto:
“Skate fast, smoke grass, eat ass, winky blast”
Oliver’s New Motto:
“Skate fast, smoke grass, eat ass, winky blast”
by Tinkiwinkyblaster69 February 28, 2020

It originates from the episode of South Park called The Jeffersons. In this episodes a new person moves into South Park who is supposed to be Michael Jackson in disguise. This new person is called Michael Jefferson. Mr. Jefferson likes to sing and makes these sounds: hee hee (said in a very high voice), jikjamona, jahmone, jikjabeejerka. So a Jefferson blast is when you make any of these sounds at random periods in time.
Person 1- Inside the core of the sun hydrogen-
Person 2- HEE HEE
Person 1- god dammit Elliot. Will u quit doing Jefferson blasts!
Person 2- HEE HEE
Person 1- god dammit Elliot. Will u quit doing Jefferson blasts!
by poopy butt January 16, 2016

Slang term for explosive diarrhea or can also be used as a negative expletive to express extreme frustration.
by Exa_N0ri May 8, 2021

by blondie1041 January 15, 2017

When one or more people are sleeping in a dark room and somebody goes over and starts flicking the lights on and off really fast. Yelling "Lightning Blast!!!" while doing so is optional, but reccommended. A Lightning Blast will temporarily blind and most likely piss off your friends.
by 80esprit December 14, 2008

When in a three way and cumming on the girl (either boobs or face) the area in which cum might shoot is considered the blast zone. The other guy is to stand back and whack while until the other guy finishes so he doesn't get hit. When the man is finished the other person approaches and the just finished person backs up to respect the mans Blast Zone.
by Jamgasm675 October 23, 2008
