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1.
1) To be approached by African-American males in a violent manner, usually intimidating males with intent of extreme pain or rape is involved when a nigga is so called "frontin." Also used to describe you and your homies going to a place to fuck shit up.
Chad: Man Tyrone and Jamaal were really on your back yesterday right?

Tyler: Well, what are you going to do, Niggas be frontin

EX2

Ryen: Dudes, We are about to totally own this shit,

Ryen's Boys: Yeah totally man

Jake: Hella bro, Niggas be frontin.
by ASEAKWAUCEEEEE January 04, 2013