Boo Birds Dump on Donald Trump

L.A. Lakers fans are wild for team mascot Jack Nicholson ... but the town isn't as fond of Donald Trump.

Before the start of the fourth quarter in last night's Lakers game, the Jumbotron flashed pictures of celebs in attendance. For Lakers super-fan Jack Nicholson, the crowd roared, but when The Donald's combedover mug came up, the crowd roundly booed!