recherchez un mot, comme half chub :
 
1.
it means sorta like mind ya business. as in stop buggin me. u can use it 2 scold gossipers too. used w/ all up in my business
jen: so what did u & him do last night huh?
tia: geez, all up in ma business all up in ma grill!
de PinHeard 9 mars 2004
 
2.
To be all over a person in a sexual fashion.
"Yowanda wants me up all in her grill tonight!"
de Peterson 7 septembre 2004