When you get so mad that you cannot control your actions.

Red mad can be held in sometimes, but you need to be like Ned Flanders to do so.
Matty G (14 year old rapper): RED MAD, KEEP IT IN LIKE NED FLANDERS!
Person 1: Wow, that guy is really good at keeping in his anger.
by MattyGesus June 14, 2018
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When it's 'Mad Red Brick' outside people are referring to a lot of building work in the vicinity. Red brick dust in the air will make things Mad Red Brick. You'll have to go out with a mask on or you'll be coughing Mad Red Brick.
Geez Dweeble - it's mad red brick out today - I could have built a house with my boogers.
by VunderFull January 7, 2014
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