cut someone dead
Verb
Meaning
cut someone dead (third-person singular simple present cuts someone dead, present participle cutting someone dead, simple past and past participle cut someone dead)
To completely ignore someone.
where he used to cut them dead, he now helps them on with their coats
Synonyms
shun
ignore
snub
cold-shoulder
give someone the brush-off
send to Coventry
give someone the cold shoulder
cut someone cold
turn one's back on
look right through