cull out of
cull (someone or something) out of (something)
To remove someone or something from a group. We were so determined to win the science bowl that we culled everyone who seemed susceptible to stage fright out of the team.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
cull someone or something out of somethingand cull someone or something out
to eliminate someone or something from a group. We will cull the older pigeons out from the flock. They culled out the slower runners from the team.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.