Bit of silliness (4)
I believe the answer is:
goof
(Other definitions for goof that I've seen before include "boob" , "(Make a) silly mistake" , "Blunder, mistake (slang)" , "In slang, bungle or blunder" , "Foolish mistake" .)
I believe the answer is:
goof
(Other definitions for goof that I've seen before include "boob" , "(Make a) silly mistake" , "Blunder, mistake (slang)" , "In slang, bungle or blunder" , "Foolish mistake" .)