PTDem 22.b:23[2] :נחת עולא לתמן ואמרה בשם ר׳ יוחנן וחברון עלוי‏ : PN went down there, said it in the name of PN, and they shouted him down
See the entire entry for ḥbr#3 vb. to shout down, to boo s.o.