It is mere circumlocution to say “A person has a mouth like a monkey's”; one should rather say, “You, so-and-so, you are a monkey.”
Ó pẹ́ títí ni “A-bẹnu-bí-ẹnu-ọ̀bọ”; ká ṣá sọ pé, “Ìwọ Lámọnrín, ọ̀bọ ni ọ́.”