(as) thick as two short planks

US /əz θɪk əz tuː ʃɔrt plæŋks/
UK /əz θɪk əz tuː ʃɔrt plæŋks/
"(as) thick as two short planks" picture
1.

ngu như bò, đần độn

very stupid

:
He's (as) thick as two short planks, he never understands anything.
Anh ta ngu như bò, chẳng bao giờ hiểu gì cả.
You'd have to be as thick as two short planks to believe that story.
Bạn phải ngu như bò mới tin câu chuyện đó.