finger in the pie

finger in the pie also finger in every pie  {n. phr.},  {informal}
Something to do with what happens; part interest or responsibility.
When the girls got up a Christmas party, I felt sure Alice had a finger in the pie.
The Jones Company was chosen to build the new hospital and we knew Mr. Smith had a finger in the pie.
Jack is a boy with a finger in every pie at school, from dramatics to football.
Categories: hand {informal} {n. phr.}