go through one

go through (one)

1. To use an intermediary, rather than talking to someone or doing something directly. You won't be able to talk to the CEO directly—you need to go through his administrative assistant.
2. Of food, drink, or medicine, to be rapidly excreted from the body (as urine or feces) very soon after being ingested. A shortening of "go (right) through one like a dose of salts," which refers to the use of Epsom salts as a laxative. I try not to drink more than one cup of coffee because it just goes right through me. I love Indian food, but I eat it so infrequently that when I do, it goes through me.
See also: go, through
Farlex Dictionary of Idioms.

go through one

1. Use as an intermediary, as in Bob can't release that; you'll have to go through the main office. Also see go through channels.
2. Also, go right through one (like a dose of salts). Be rapidly excreted without being digested. For example, I don't know why, but Thai cooking goes right through me, or That banana drink went through Dad like a dose of salts.
See also: go, one, through
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • chain of command
  • bring (someone or something) up against (someone or something)
  • talk in circles
  • pick up what (one) is putting down
  • fence with
  • fence with (someone)
  • face to face with (someone or something)
  • beeline
  • beeline it for (some place)
  • tell (one) to (one's) face