Answer:

goof

Answer	Crossword Clue
GOOF	Make a boo-boo
GOOF	Foul-up
GOOF	Blunder

GOOF	Err
GOOF	Pull a boner
GOOF	Error
GOOF	Flub
GOOF	Blooper
GOOF	Screwup
GOOF	Blockhead
GOOF	Bozo

GOOF	Loaf, with "off"
GOOF	Make a mistake
GOOF	Careless mistake
GOOF	Mistake
GOOF	Blow it
GOOF	Foolish sort
GOOF	Screw up
GOOF	Silly mistake

GOOF	Slip up
GOOF	Bungle, with "up"
GOOF	Bungle
GOOF	Foozle
GOOF	Mess up
GOOF	Clown
GOOF	Idle, with "off"
GOOF	Mess (up)

GOOF	Silly error
GOOF	Botch up
GOOF	Slip-up
GOOF	Kill time, with "off"
GOOF	Faux pas
GOOF	Minor mistake
GOOF	Stumble
GOOF	Boo-boo

GOOF	Make a blunder
GOOF	Commit a blooper
GOOF	Ninny.
GOOF	Stupid one: Slang.
GOOF	Make a boner.

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.