noun

a shrill whistle or shout of disapproval made at a public meeting or performance.

he walked out to jeers and catcalls

whistle,boo,hiss,jeer,raspberry,hoot,brickbat,taunt,shout of derision,wolf whistle,scoffing,abuse,teasing,taunting,derision,ridiculing,mockery,the bird

verb

make a catcall.

they were fired for catcalling at women