Fans Chant 'F*** Jae Crowder'

Pelicans fans were all over Suns' forward Jae Crowder last night ... starting an impromptu (and pretty damn loud) "F*** Jae Crowder" chant during the game.

The chant came in the second quarter of Game 4 between the Suns and Pelicans ... Crowder was called for a foul on Brandon Ingram, sending BI to the charity stripe for two free throws.

And, it was clear as day on the game broadcast ... "F*** Jae Crowder!" But, why the animosity?

Pels fans probably still have the visual of Crowder going after New Orleans' big man Jaxson Hayes on Friday after refs hit Hayes with a flagrant 2 foul and ejected him.

Hayes barreled into Crowder as if he were a linebacker blowing up a running back ... though, a WWE…