Bills OC Ken Dorsey was so pissed in the waning moments of Buffalo's loss to the Dolphins ... he absolutely LOST IT in the booth, slamming his headset and tablet!
Dorsey was frustrated the Bills couldn't get a play off as the clock ticked towards zero ... after receiver Isaiah McKenzie failed to get out of bounds after receiving a pass from Josh Allen.
Broadcast cameras showed Dorsey in the booth, and he was livid, taking out his frustration on his headset and tablet.