(as) mad as a hatter

US /əz mæd əz ə ˈhætər/
UK /əz mæd əz ə ˈhætər/
"(as) mad as a hatter" picture
1.

疯疯癫癫的, 完全疯了

completely crazy or insane

:
My uncle has always been (as) mad as a hatter, always coming up with the wildest ideas.
我叔叔一直都疯疯癫癫的,总是想出最疯狂的主意。
After working non-stop for three days, he was (as) mad as a hatter.
连续工作三天后,他已经疯疯癫癫的了。