A baboon British slang rude
Used to refer to someone who is foolish, irritating, or rude; an idiot or a rascal
Stop talking shit, baboon. Just go away, no need to come back.
I have just met a baboon. He has ruined my beautiful day.
I can't believe David is a baboon. He seems to be kind and friendly.
The plural form of this noun is "baboons".