The New Fashioned Double Thumb Around

Similar to the "Old Fashioned Thumb Around" (going up to someone with open arms as if to give a hug but then quickly inserting your dominant thumb inside their asshole after you wrap your arms around them), but instead using both thumbs.

"I gave my ex boss, Mary, the New Fashioned Double Thumb Around in the break room right before putting in my two weeks notice. I figured what is she gonna do, fire me?"