it is a dance or a way to act (mostly in the bay area 510 where i am from)... one way is to do this hop and extend your arms an jump at tha same time.. so while your jumpin you kick your leg up, back, n back down..n repeat.. and to claim your turf like crazy.
" GET STUPID!! WAT IS IT?! ITS NUTTHIN!"
"STRAIGHT(put your hood here)! ITS NUTTHIN TO A BOSS!"