To say what's going on or to describe something that was good.
1) Yo what's crackin son?
2) That party was on and crackin last night.
Referring to when a persons pants are discustingly low and reveal their butt crack.
*Man with low rise, large, britches bends over*
"Dude your crackin me! Get some pants that fit!"
1. A Good time 2. To Crack off 3. To Complement
Hey baby, your ass is "crackin". Last Nights party was "Crackin". The fresh Drum and bass cam out and that sh*t is "Crackin!"
To describe something that is tight and worthwhile.
Ooo, that party last night with the DJ girl? Hella CRACKIN, dog!