bigradal 

adj.- in different grades, usually used to show a relationship or date status

Molly and Patrick were bigradal Homecoming dates, for Molly was a Freshman and Patrick was a Sophomore!

bigradal by PMeezy September 13, 2010

holla bigadale 

used almost as holla back but a sillier way of saying it

Shannon: okay im out
Jineen: holla bigadale
Shannon: holla back b

Dionte: there go yo girl
Aaron: nigga holla bigadale. I don't want that hoe

holla bigadale by The kid's wife February 20, 2004