CRABBY BIRTHDAY TO YOU! Did somebody say “mean grrrls?”

On her 23rd birthday, super-hot EMMA STONE power-canoodled with boyfriend ANDREW GARFIELD in the lobby of LA’s Landmark Theatre just before attending “Tower Heist” – but was interrupted by a gaggle of teen-ish girlies, who asked meekly: “Do you mind if we take a picture with you?”

Instantly, Hollywood’s new “It Girl” whirled on the girls and snarled: “Do you mind if I DON’T!?” Here’s the heartbreaker:

Moments later, Stone stormed into the ladies’ room to reapply her licked-off lipstick, looking lovingly at herself in the mirror – ignoring one of the lassies she’d just snubbed, who was wiping away tears at the next basin!