dictionary.pt
to make stupid / to become dull
verbcolloquialuncommon/ɐ.bu.bu.ˈɾaɾ/a·bo·bo·rar
Definition
1To make or become stupid, silly, or confused; to become dull-headed.
Usage examples
“This intense heat makes me stupid, I can't think.”
“After so many hours of studying, he was completely befuddled.”