Phrase meant to rescue from any awkward situation and when repeated enough, makes people who take themself too seriously very angry. Most often used as an iron-clad comeback or avoidance of situation.
Bill: "Well, Obama's economic policy is complete crap, he's a communist."

Bob: "your moms your dad."

Bill: "Ahh...?"
by spencerlovesboys October 8, 2008
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Them most destructive insult of all time 1000 times worse the your mom gay, your dad lesbian, your granny tranny and your grandpap a tarp put together it would end all living relatives at the time.
Jhon your mom gay

Mike your dad lesbian

Jhon you granny tranny

Mike your grandpap a tarp

Jhon your mom & dad gay together

Mike fucking explodes

Mikes family fucking exsplodes
by Drug-Overdose April 11, 2018
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"your mom is your dad's mom" is a satirical reference to jokes beginning with "your mom is..."

it came from boredom while walking around target.

if someone is telling "your mom..." jokes, tell them this one, and you will win, for sure, i promise. they won't know what to say. guaranteed to work, everytime.
"your mom is so fat she......blah blah blah"

"your mom is your dad's mom"

"wtf?"

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*clicks the thumbs down thing*
"yeah? well...your mom is your dad's mom"
by i am soooooo saxy April 24, 2006
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used as a comeback for when your friend is hitting you with a your mom insult
weirdly effective
Person 1 : your mom is fat!
Person 2 : YOUR MOM IS YOUR DAD
Person 1 : ..... (can't come up with a better comeback)
Person 2 : OHH ROASTED CHICKEN
by thegodofallbeings November 12, 2017
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your mom is my dad is a phrase used to confuzzle someone you are annoyed at.
Me: Your mom is my dad

Someone else: What the fuck

Me: Yeetus to the fetus.

Someone else: MMMM...OKay then.
by Maddgymstar May 28, 2019
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