President Biden heard what his haters have been saying in code for months now -- a "f*** you" jab that one guy had the gall to say right to POTUS's face, on Christmas Eve no less.
JB and the First Lady were making calls to military families and their kids Friday from all over the country ... talking Christmas, presents, wish lists and of course, Santa Claus. In fact, 46 and the missus were using the trusty NORAD Santa tracker to help in their discussions.
During one of the calls ... a father hopped on, and wished the Bidens a Merry Christmas.