bloop·er 
(blpər)
(blpər)n.
1. Informal A clumsy mistake, especially one made in public; a faux pas.
2. Baseball
a. A weakly hit ball that carries just beyond the infield.
b. A high pitch that is lobbed to the batter.
3. An outtake in which a member of the cast or crew for a movie, television show, or other filmed production makes a mistake, usually in an amusing way.
[BLOOP + -ER1.]