Matt Lauer definitely got the finger from co-host Savannah Guthrie this morning ... live on 'Today' ... only question is -- which finger?
During a segment on vacuum cleaners ... Matt cracked, "By the way this is the first time Savannah has ever used a vacuum."
Savannah apparently thought she was off camera when she fired off a one-finger salute in Matt's direction!
But wait ...
Savannah immediately hit her Twitter page to claim it was NOT the bird, and just her index finger.
She might have a point, but still -- considering all the crap Matt's been catching lately -- Savannah's intent is there, no?