Josh Allen clearly doesn't believe Tom Brady really sank a hole-in-one on a golf course recently ... sayin' the Buccaneers star's video of the alleged ace was "bulls***."
The Buffalo Bills quarterback made his feelings clear with an Adam Sandler meme just minutes after Brady dropped a video of him apparently sinking the long shot.
In the GIF, Sandler stutters ... before spittin' out, "BULLS***!" -- a clear sign Allen believes Brady photoshopped it all.
TB12, though, sure did a good job sellin' the clip if it was indeed fake -- 'cause he captioned the video by saying, "This is why you film every shot on the course…"
He also celebrated his face off in the vid -- jumpin' around as if he had just won (another) Super Bowl.