When you stick a pencil in your partners pubes and proceed to twist the pencil around so their pubes collect around the pencil in the form of a ice cream swirl. You then shit on the area that is raw from having the pubes forcibly ripped off, then form the shit in the form of jimmy neutrons hair
"Dude Brittany gave me a Jimmy neutron"
"She gave you. A big head?"
"No she gave me head then my dick swelled from her std"
by B1tchPudd!ng February 9, 2015
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Some genius kid who has a shit swirl as a hairdo. Whenever he tries to explain something that is impossible, some gay faggot starts singing, overlapping the conversation. (example: when Jimmy tries to explain how he's breathing in space, the fatfuck Carl starts singing his ass off, covering up what jimmy is saying.) He has a robotic dog that can do anything, from flying like a helicopter to extracting stem cells from it's victims.
It's a plane! It's a bird! It's Superman! Oh, no wait....it's just Jimmy Neutron with that shitswirl hairdo on his head.
by Wasabimoto March 26, 2007
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Fomenting a breakup of existing relationship in order to start dating one of its members.

The term can also apply what you do to a guy when you steal his girlfriend.

"Neutron bomb" originally refers to the tactical nuclear weapon, which kills populations but leaves infrastructure intact for use by an invading army.
Sandra is really hot, but she's been seeing that dork Jeffery. I need to neutron bomb that so I can get in.

I neutron bombed John so I could date his hot girlfriend Amy.
by HankRearden August 1, 2007
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When you're about to bust a nut on a girls forehead and you yell out, "brain blast!" As you bust.
Brandon Jimmy Neutroned Jenny the other day and I could hear him yelling brain blast from outside of his house!
by B stoich the ruler April 7, 2015
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The lord our god we praise him so that we may live
Hail Jimmy Neutron Hail Jimmy Neutron hail Jimmy Neutron
by ALL-HAIL-JIMMY-NEUTRON October 23, 2019
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When you’re about to bust during sex
Him: I’m boutta Jimmy Neutron in you!
Her: What the hell does that mean?
Him: GOTTA BLAST! *cums*
by YaBoiEE69 May 23, 2021
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A dumbass kid on a movie and a rip-off idiotic TV show that goes into space with a rocket with no propulsion and no air, and no cockpit, and simultaneously magically TALKS IN SPACE! Here's a clue, you idiots who made this movie: SOUND TRAVELS IN AIR. THERE IS NO AIR IN SPACE! The kid would have his organs sucked out of his nose if he did that, not to mention radiation poisoning. The amusement park crap is completely stupid anyway.
Jimmy Neutron is a crap movie that makes kids dumber than they already are.
by Froggyliciousness July 4, 2004
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