goof (1): a
silly and foolish person.
goof (2): make a mistake.
goof off (3): waste time.
goof-off (4): someone who wastes time and isn't serious.
goof up (5): make a mistake.
goofy (6) :
silly.
1."What a goof you are!"
2.I really goofed on the test today."
3."
Stop goofing off and help me clean the house!"
4."A goof-off never does well in
school"
5."Oh no! I really goofed up!"
6."Kids always make me feel
goofy!"