-1 a person whos actions are putting the people around him in harms way
2- acting very stupid
3- in a state of dangerous stupidity
1- Damn, this nigga Jeff was actin mad reckless took out his knife and started swinging that shyt lke he was tryin to catch a fly.
2- This nigga Heff acting mad reckless, its probally dat big ass lip.
3- Oh shyt nigga, stop being reckless watch where you point that shyt.