Ghost's comment (3)
I believe the answer is:
boo
(Other definitions for boo that I've seen before include "I disapprove" , "Disapproving sound" , "Shout of dislike" , "Surprising outburst" , "Shout of disapproval, maybe at ref" .)
I believe the answer is:
boo
(Other definitions for boo that I've seen before include "I disapprove" , "Disapproving sound" , "Shout of dislike" , "Surprising outburst" , "Shout of disapproval, maybe at ref" .)