Guthrie flips 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? Judging by Guthrie’s face, it definitely appears like she is flipping Lauer the bird. But judging by her actual fingers, it appears that she may be using her index finger. Guthrie wrote on Twitter: “Folks!! That was my INDEX finger! Photo evidence proving my innocence coming! #fingergate #TGIF. We have examined the tape… index finger indeed. #phew