Answer:

booed

Answer	Crossword Clue
BOOED	Verbally panned
BOOED	Greeted a Yank at Fenway?
BOOED	Greeted roughly

BOOED	Reacted to an error, maybe
BOOED	Razzed
BOOED	Reacted to a bad call, say
BOOED	Threw tomatoes, verbally
BOOED	Threw verbal tomatoes
BOOED	Showed dissatisfaction, fan-style
BOOED	Serenaded the ump
BOOED	Voiced one's displeasure

BOOED	Showed scorn for an act
BOOED	Hissed
BOOED	Greeted the villain
BOOED	Reacted to a bad call
BOOED	Expressed displeasure
BOOED	Expressed disapproval
BOOED	Didn't support
BOOED	Displayed displeasure

BOOED	Showed displeasure
BOOED	Voiced disapproval.
BOOED	Sounded off, in a way.
BOOED	Shouted down
BOOED	Disagreed loudly
BOOED	Expressed dissatisfaction (5)
BOOED	Jeered
BOOED	Expressed dislike

BOOED	Reacted to an ump's bad call
BOOED	Like visiting teams, often
BOOED	Like unpopular umps
BOOED	Like the bad guy
BOOED	Like villains
BOOED	Like villains, often
BOOED	Protested from the stands
BOOED	Serenaded the umpire

BOOED	Showed disapproval
BOOED	Was a rude member of the gallery
BOOED	Expressed dissatisfaction
BOOED	Made catcalls
BOOED	Objected to a bad call