This improv game is in the following improv game categories:
Here's a simple 'pass-the-ball' game, but with 2 twists: 1) no-one can catch the ball and 2) the group must be unbelievably supportive of the catcher's inability to catch the ball.
The ball is thrown to a person, preferably by naming that person ("here John") or some other way to focus the group on the catcher. He catcher misses the ball, drops it, fumbles, or whatever, as long as he fails.
The rest of the group does not booh, but finds something praiseworthy about what the catcher did. E.g. "Good move!", "Great energy!" etc.
Attributed to Jill Bernard.