The instinctive and unexplainable urge to throw yourself into your friends fights. Inspired by the oh so awesome Jayne Cobb, of Joss Whedon's Firefly.
He hit me, I hit him, and then there was a Jayne reaction and all the Browncoats started punching.
by TashaElizabeth August 22, 2006
Get the Jayne reaction mug.
A primitive response to external stimuli, occurring before reason has a chance to modulate one's behavior.
"Screw you, sinners!"

- Baby Jesus' gut reaction when Mother Mary explained about God's crucifixion plan.
by GreatBigBore March 5, 2010
Get the gut reaction mug.
The explosive reaction from over stimulation of common activities
This Digiorno pizza was so good I had a seminal reaction in my pants.
by NeoRage211 September 9, 2010
Get the Seminal Reaction mug.
when an insane boy is lucky enough to have a girlfriend but decides to break up with her based on another boy liking her and them speaking to each other. The boy doesn't realise he can't do any better and should count his blessings and not be a prick.
tom: so i broke up with Nicole yesterday
dario: what?, why?
tom: cause she was talking to Alex
dario: did they do anything?
tom: no, of course not she loves me
dario: your such a twat, i think you may have had an over reaction
by dazzzzz December 12, 2006
Get the over reaction mug.
When you have a significant other but someone else kiss's and you kiss back because it takes a few seconds to register what's actually going on. It's not concidered cheating
i couldn't help it, that was just the reaction kiss
by thishappenstoeveryone March 1, 2011
Get the Reaction Kiss mug.
One of the the nicest tiktoker ON the planet
Tim: Hey did you see angry reactions new tiktok
Sarah:YEA hes soooooo nice

Tim:I KNOW RIGHT
by Toblesstocare October 10, 2020
Get the angry reactions mug.
Pretty much a another name for an erection. Caused by women and tv/film/media.
"Dude listning to her voice gave me a man reaction"
by glaufag April 4, 2009
Get the man reaction mug.