infiltrate (something)

infiltrate (something)

To surreptitiously gain access to a particular group or thing, as to monitor or affect their activities. The boss is starting to wonder if an undercover cop has infiltrated our group.
See also: infiltrate
Farlex Dictionary of Idioms.
See also:
  • infiltrate
  • insinuate
  • insinuate (oneself) into (something)
  • insinuate oneself into
  • cop (something) from (someone or something)
  • cop from
  • cop a feel
  • cop it
  • boss lady