ismejati

1. to ridicule; to mock; to make fun of
   Svi su ga ismejali zbog te frizure. — Everyone made fun of him because of that haircut.
   Plašila se da će je ismejati pred razredom. — She was afraid they would ridicule her in front of the class.
2. colloq. (ismejati se) to have a good laugh
   Sinoć smo se baš ismejali uz taj film. — We had a really good laugh at that film last night.

In the sense "to ridicule" it takes the accusative: ismejati koga.