Blooper

noun

1. A blunder, an error.
2. A fly ball that is weakly hit just over the infielders.
3. A filmed or videotaped outtake that has recorded an amusing accident and/or mistake.
4. A gaff-rigged fore-and-aft sail set from and aft of the aftmost mast of a square-rigged ship; a spanker.
5. A radio which interferes with other radios, causing them to bloop (squeal loudly).