get your oats

get (one's) oats

slang To have sex, especially frequently. Primarily heard in UK. Bill is hardly ever home anymore—he must be getting his oats now that he's single again.
See also: get, oat
Farlex Dictionary of Idioms.

get your oats

have sexual intercourse. informal
1965 William Dick A Bunch of Ratbags I was kissing her excitedly and passionately… Cookie, you're gonna get your oats tonight for sure, I thought to myself.
See also: get, oat
Farlex Partner Idioms Dictionary

get your ˈoats

(British English, informal) have sex regularly
See also: get, oat
Farlex Partner Idioms Dictionary
See also:
  • get (one's) oats
  • feel one's oats, to
  • almost never
  • all the time
  • feel your oats
  • feel (one's) oats
  • feel oats
  • feel one's oats
  • oat
References in periodicals archive
That's pretty close to the 35 grams you need to lower your cholesterol by 3 percent, and is clearly the most efficient way to get your oats.
Jumping on the branwagon