One who constantly steps over "the line" whatever that line may be. This has the effect of forcing you as an observer to set him or her straight with physical force or the threat of physical force.
RICK JAMES "Charlie Murphy!!! (punch to the head, leaving a mark)
Then Charlie Murphy proceeds to kick Rick James' ass because he's gotta check that shit so it don't happen again, forcing him to stop being a habitual line stepper.
One who always goes over the line. One who always goes too far and exercises no apparant regard for the consequences. Term was coined by Charlie Murphy on Chapelle's Show when describing the antics of Rick James.
Rick James was an habitual line stepper.
Greg owes me utilities and just had sex with my girlfriend for the third time this week. That guy is such an habitual line stepper.
An involuntary idiotic behavior pattern regularlyfollowed. Regular disposition or tendency to act in a stupid manner or think or say thoroughly stupid things.
"hey man do you keep getting those urban dictionary word of the day emails from Sami?"
"yeah bro amongst a million stupid text messages about nothing, but it doesn't bother me because I know that Sami will always be a habitual dumb ass!"