George Clooney Snubs Pals Brad Pitt, Rande Gerber and Matt Damon After Twins’ Birth

George Clooney is too slammed for his friends this summer!

The doting new dad is preoccupied after his wife Amal gave birth to twins — but now he’s too busy for even his famous best friends!

The actor, 56, who’s leading a much more domestic life in the U.K. at the couple’s Aberlash Estate, is blowing off his pals with “lame excuses,” a source told RadarOnline.com exclusively.

“George is making these lame excuses because he’s gotten snobby and anti-social since moving to England,” the source revealed. "All of a sudden he’s stopped returning calls from Rande Gerber, Bill Murray, Matt Damon…even Richard Kind, who’s been very much his best buddy for years.”

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Newly divorced — and sober — Pitt wanted to see Clooney when he was at the Glastonbury Music Festival in Britain recently, but he was also told a get-together wasn’t possible.

Fortunately for Clooney, the pals are being "patient" with their no-show friend.

“For now they’re being patient and not taking it personally, but unless he changes his attitude he’ll drive them all away,” the source added.

Cooney married his 39-year-old lawyer wife in Venice last September with many of his friends present at the lavish wedding, and the couple welcomed twins Ella and Alexander on June 6.