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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