so's your old lady

so's your old lady

dated A childish, petty response to an insult, essentially meaning "same to you." In this phrase, "old lady" refers to one's mother (in other contexts it often refers to one's wife or girlfriend). A: "You're a stupid monkey brain!" B: "Oh yeah? Well, so's your old lady!"
See also: lady, old
Farlex Dictionary of Idioms.
See also:
  • So’s your old man!
  • so's your old man
  • pudding and tame
  • I'm rubber, you're glue
  • I know you are but what am I?
  • sticks and stones
  • fire insults at (one)
  • hurl insults
  • hurl insults (at one)
  • How old are you?