Scientific terminology indicating multiple steps between a cause and effect. In actuality, the term is a glorified synonym for 'yadda yadda yadda'. It is also used as a filler statement when the speaker does not know how something occurs, but doesn't want to look stupid.
"I got blackout drunk at that party last year, and by the law of mass action, I gotta pay child support."
by Bernard Katz March 18, 2010
 Get the mass actionmug.
Get the mass actionmug. Holding a girl up while fucking her only using your own strength, then switching holes in mid air and keeping going full speed.
by conjecturecycleflowmax November 28, 2010
 Get the action johnnymug.
Get the action johnnymug. Normally used for forums and message boards, and instant messaging. It's the act of placing "*"'s around a verb or phrase to signify thaty it's on action.
Today on AIM I used some crazy action stars to express my feelings!
Action stars are great for terms like *cuts*, *cries*, and *slices*.
*pulls out a machine gun*
Action stars are great for terms like *cuts*, *cries*, and *slices*.
*pulls out a machine gun*
by GB1337 August 6, 2006
 Get the action starsmug.
Get the action starsmug. Noun: a fart that occurs when a the farter exerts themselves in a manner usually unassociated with the act of farting itself. Often associated with lifting heavy objects or laughing hysterically. This fart is always unintentional.
Fartee: Help me moves this couch, will ya?
Farter: Sure. *grunts*
Fart: thbbtbtbthbbt.
Fartee: What? Did you just fart when you picked up your end of the couch?
Farter: Sure did. Couldn't be helped. Action fart.
Fartee: No doubt.
Farter: Sure. *grunts*
Fart: thbbtbtbthbbt.
Fartee: What? Did you just fart when you picked up your end of the couch?
Farter: Sure did. Couldn't be helped. Action fart.
Fartee: No doubt.
by anodine rush February 28, 2010
 Get the action fartmug.
Get the action fartmug. by mikeekim March 9, 2009
 Get the foot actionmug.
Get the foot actionmug. A form of token protest, support or "philanthropy" requiring little or no effort or commitment on the part of the individual engaged in said action.
"I'm going to click 'like' on this Facebook update about how bad a thing global poverty is. We all need to show solidarity."
"Dude, that's nothing but cabbage action".
"Dude, that's nothing but cabbage action".
by CabbageActor December 5, 2010
 Get the Cabbage Actionmug.
Get the Cabbage Actionmug. 1) a more expressive utterance when other responses such as "cool," "awesome," or simply "sweet" won't do
2) especially relevant in the world of avocados
2) especially relevant in the world of avocados
"Dude, I got promoted yesterday."
"Sweet action!"
"Dude, do you want to go avocado picking?"
"Sweet action!"
"Sweet action!"
"Dude, do you want to go avocado picking?"
"Sweet action!"
by Global Justin March 3, 2004
 Get the sweet actionmug.
Get the sweet actionmug.