1.) to ejaculate profusely. "Brains" referring to slang for testicles.

2.) Refers to the slaughterhouse process of removing the animal's brains with compressed air forced into the skull through the hole where the spinal cord enters. The brains are then packed and sent to markets in Korea and China as food. This term appeared in the February 4, 2008, Washington Post article titles, "Inhaling Pig Brains May Be Cause of New Illness."

"Last week I went for a massage and the girl had me blowing brains all over the place!"
by chodiramone February 7, 2008
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1. To make your vehicle into a convertible or rag top.

California slang, first heard by me from the rapper Mac Dre.
"That scraper is dope, the brains are blown"
"Man my wheels is in the shop, thur gonna blow the brains"
by aKB916 December 16, 2006
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When a man becomes so stupid from receiving blow jobs that he is financially irresponsible and easily taken advantage of...
Wife, "If I happen to die and you collect on my life insurance, don't succumb to blow job brain from all the money hungry ho's out there. Be smarter than that."
Husband , "Do I look that stupid?"
Wife, "Yes."
by Milly5 September 26, 2015
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The word exceeds mind-blowing in intensity. Its effect is like blowing your brains. Hence, it may be tantamount to 'exceedingly shocking' or 'heart-wrenching'.
The news of the death of her only son in a road accident came as a brain-blowing shock to her.
by uttam maharjan December 8, 2011
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the act of someone shooting him/herself on the head.
Tommy decided to blow his brains after hearing the horrible news.
by KRHimself November 3, 2004
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wanking furiously
blow my brains out is a phrase used when you wank so hard that your brain EXPLODES EVERYWHERE FROM EUPHORIA
by eatingrice May 3, 2015
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