Lamar Odom's alleged drug dealer has claimed he spent $50,000 on cocaine in three years.

The New York-based dealer - who has concealed his identity - has come forward to allege he witnessed the former Los Angeles Clippers basketball player consume the illegal drug on as many as 10 occasions since 2010 when Lamar visited Queens in New York where he grew up.

"[Lamar has a] huge problem and he has a very addictive personality. It is becoming worse as you can see. He [Lamar] likes to party, He's a pretty nice guy to be honest with you, but he's becoming ... his problem seems to be becoming a bigger problem . In my experience, he literally likes cocaine. He is a cocaine guy. He likes to smoke it," the dealer said in a video interview with RadarOnline.com.

RadarOnline.com reports the dealer supplied Lamar with cocaine - which he would then freebase, a method of consumption whereby the user purifies the drug by burning it and then inhale the fumes. The drug pusher claims Lamar, 33, even freebased cocaine before a game between the LA Clippers and the New York Knicks at Madison Square Garden on February 10 this year. He alleges the sportsman spent $16,000 on cocaine: "I know it for a fact because I sold him the stuff and saw him smoke it, he spent about 16 grand. Quantity wise, it was a little under half a kilo."

When asked how much the Lamar spent over three years, he replied, "Roughly, more than 50 grand ... over the time I've known him."

Lamar and Khloe's representatives are yet to comment on the allegations.

Lamar's father was a heroin addict and his mother died of colon cancer when he was just 12, leaving him to be raised by his grandmother Mildred. Amid the drug and cheating allegations, the basketball player had his driving license suspended for one year after he was arrested for driving under the influence (DUI) at 3:25am last Friday. According to a report compiled by the Los Angeles County Sheriff's Department, he showed "objective signs of intoxication and was unable to perform sobriety tests as explained and demonstrated."

He was booked into Van Nuys prison at 5:01am before posting $15,000 bail and being released.