AP Photo/Wilfredo Lee

Miami's Udonis Haslem reacts to a foul call during Thursday's tilt with the Celtics.MIAMI -- Miami's Udonis Haslem fired back at Paul Pierce's tweet jabbing at teammate LeBron James, calling Boston's captain a "studio gangster" Friday.

"Paul who?" Haslem told reporters at Friday's afternoon practice, according to Michael Wallace of ESPN's The Heat Index. "Man, ain't nobody paying them dudes no attention, man. You know what studio gangster is? Look up that, look up the definition of studio gangster. I'm here to play basketball. First of all, I don't tweet. So I wouldn't know what he tweeted if you guys didn't tell me."

Urban Dictionary -- the Webster's of pop culture -- offers one definition of studio gangster as:

"An insult that refers to somebody who raps about ganglife style in Hiphop. Orgin: Los Angeles late 80's slang used by street gangsters who makes fun of people in hiphop rapping about the ganglife style. "game is sold not told" meaning you live it and not speak about it. also refers to being a wannabee gangster. a person into hiphop and also intrigued by ganglifestyle and raps about it like he does it. and brags in rap music of false situations. when in real life does none of it at all.

Pierce appeared to start the jousting when a message was posted to his Twitter account after Thursday's game that read, "It's been a pleasure to bring my talents to south beach now on to Memphis," a jab at James' now-famous words during his ESPN-televised "The Decision," where he announced to a national audience he would be signing with the Heat in July.

Click HERE to read the full story on the fallout from Pierce's tweet.