Your first lay
I wouldn't brag about losing my virginity to my grandma, you jackass.
by Master of Girth April 4, 2003
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A phrase that means that something is so good that you're awestruck by it to the point where you're so disoriented that you might mistakenly slap your grandmother. If someone takes this literally it could at best cause an awkward situation and at worst cause your entire family to fall apart.
"Woo-wee, shut my mouth, slap your grandma!
There oughta be a law, get the sheriff on the phone
Lord have mercy, how'd she even get them britches on
That honky tonk badonkadonk..."
-Trace Adkins, "Honky Tonk Badonkadonk"

Mom: "Everybody, Jimmy was nice enough to cook us this Thanksgiving turkey!"
Everyone: "Yea, Jimmy! Hip hip hooray!"
Jimmy: "Aw gee guys...Mom, why don't you have the first bite."
Mom: (eating it) "WOW I'll be damned if this isn't the greatest turkey I've ever had! Slap your grandma!"
Jimmy: "OK." ***SMACK!!!*** (pimp-slaps her across the face)
Mom: "Well I never! Jimmy, how could you?"
Dad: "Son, get out of here this instant. You're banished from this family forever."
Jimmy: "But but but..."
Dad: "But but but...SHUT UP!!! Get your elderly-assaulting ass out of my house!"
by Nicholas D May 23, 2008
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Refers to the completely asinine feeling you get when you ask about someone's older relative because you knew they were struggling with some sickness... and they recently DIED.

There is literally nothing you can say after you ask "How's your Grandma?" and they tell you their Grandma is now dead.
"Hey man, so How's your Grandma?"
by The1dietrich January 18, 2013
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To show understanding of another person's statement or situation
Matt: The hottub was hot, she was ready, how could I say no? You know what I'm trying to say?
Adrianna: Yes I do, I'm definitely smellin' your grandma on that one.
by M-Diddy February 2, 2004
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A sentence used by celebratory faces in lessons such as Math to insult people they admire or are attracted to. This statement can mean the person would like to smell underwear belonging to who it is aimed at.

"That's well rand, I'm creasing"

*Guilty face*
"Smell your grandma"
by almanjam February 7, 2009
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Worse than "your dad lesbian" and "yo're mum gay" combined. If followed by a "Lol XD", then true devestation is brought forth.
Carl: your dad lesbian and your mom gay.

An intellectual: your grandma bisexual Lol XD

Carl: dies of gayness and being a faggot
by Throckmorton the skater March 9, 2018
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