Lil Wayne is a L-L-L-L-L-L-L-L-LIAR ... who FALSELY told fans he'd been banned from all NBA events ... this according to a league spokesperson. NBA Senior Director of Basketball Communications Mark Broussard tells TMZ ... there is "no truth at all" to the claims Weezy made during a performance in Houston over the weekend. Wayne had told the crowd the NBA had banned him from all events because of his beef with the Miami Heat organization, stemming from an incident last week ... when Wayne says he was kicked out of a Heat game for rooting for the Lakers. The Heat organization said Wayne left voluntarily.

Footage of Weezy going on a tantrum at Cash Money co-owner Birdman's weekend birthday bash surfaced online a couple days ago.

"Y'all love these n*ggas so I'm gonna let y'all know why [I don't like the Heat]. The Miami Heat told [the arenas] to ban me. So I say f*ck, I'm still going to come out here and party -- when I say 'F*ck,' y'all say 'NBA'. F*ck! When I say 'F*ck,' y'all say the Miami Heat. F*ck! ... I ain't 2Pac, I'm the new Pac. Holla at cha boy."

More footage showed Wayne blasting the Miami Heat's star players and him claiming he slept with the team's power forward Chris Bosh's wife.

"Let's finish having a good time. When I say 'F*ck,' you say 'NBA.' F*ck! When I say 'F*ck,' you say 'Miami Heat.' F*ck! You let them n*ggas know I'm from the streets so I ain't going on no Twitter beef -- take it to the f*cking streets n*gga. F*ck all these n*ggas. F*ck LeBron, f*ck D-Wade, f*ck all them n*ggas man. And, and, and I f*cked Chris Bosh's wife."

Now Cam'ron is putting Adrienne's business out in the public.

The Harlem rapper told his followers Adrienne used to mess with his boy and  she used to be white girl wasted in the clubs

"My man @britishthetitan been had bosh wifey under wing b4 Wayne. Lol she use  to be pi$$y drunk in my club in da Cincinnati"

None of this seems to be fazing Adrienne and Chris, and neither one has  denied that she slept with Lil Wayne in the past.