What you call a young grandma.
If you walk into a school with your grandma and everyone thinks it's your mom. Thats a big mom. If people think your grandma is your mom thats a big mom. The biggest mom of them all.
by Mike Mike February 9, 2014
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She fell and fucking eradicated the Triassic period.
God: I’m gonna send Connor’s big fat mom to get rid of these damn dinosaurs
by I’m_Happy February 12, 2023
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Only for use when "ur mom gay" doesn't hit them hard enough. These worlds will instantly devastate any hopes and dreams they had, fire them from their job, and make all of their family instantly die.
Jeff "U are U G L Y"
You " Ur mom big gay"
*All Jeff's organs instantly rupture*
by Johava Ascendor February 15, 2018
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an absolutley devistating comback destroying anyone/anything in its path
john: hey billy wanna play fortnite
billy: UR MOM BIG GAY
john: dies from every type of cancer at once
by ur mommy gay nut April 20, 2018
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Basically destroys anybody. In some situations it has the power of getting on the same power level level as no u
To boost it's power by 2x , you must say "honk honk" after it.
Jimmy: Wanna play Minecraft ?
Timmy: No lol faggot
Jimmy: Ur mom big horny
Timmy: No u
Jimmy: Honk Honk

*Nuclear explosion destroying 99% of human race takes place*
by h0t man boy April 21, 2019
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verry offensive sentrnce that can destroy a mans life.
person1: ur mom big gaye
person2: :(
by leaisgay May 15, 2018
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