馬鹿 ばかがうつる
bakaga utsuru

Godan Verb (ru)
Expression

1. to become stupid from associating with stupid people; to be infected with stupidity — literal

Colloquial
Usually Written in Kana
Related to 移る
馬鹿 ばか うつるまえにそのような宗教 しゅうきょう かかわらんほうがいい。
bakaga utsurumaeni sono yōna shūkyōni kakawaran hōga ii.
You should stay away from cults like that before you turn into a moron.
Other forms: