Grandma burn 

A burn that comes straight from a grandmother. It originated from an episode of That 70's Show. The direct line is "That, my friend, was the greatly feared, but solemnly heard, Grandma burn."

-Look at this, Grandma!
-Oh, that's just, um, wonderful....?
-Dude, grandma burn!

Grandma burn by stikshift March 7, 2007

Grandma burn 

A "burn" in the '70s was about the same as a "diss" today, except that today, we don't point them out. To shout, "Burn!" at someone would mean that either you or someone else got that person good, either by fooling them, humiliating them, or making them the butt of a joke. This was exemplified on That 70s Show, when Eric's grandmother dropped a passve-aggressive bomb on Eric's friend, causing Eric to say, "That, my friend, is the seldom-heard, but much-feared 'Grandma burn'."

I went into grandma's closet to find something, and I saw the holiday outfit I got her that she said she loved was shoved in a box by the ceiling, and never worn.

Friend: ooh! Grandma burn!!

Grandma burn by Askanoldhippie September 15, 2013

grandma burnt

Grandma grew up in the Great Depression. There was no waste. If food was burnt, you scraped off the burnt bit and ate the rest.

"Grandma burnt" means that the food (usually toast) is burnt, but not burnt so badly that you can't scrape off the burnt part and eat the rest. It's not "really" burnt.

That toast is only grandma burnt. You can still eat it.

grandma burnt by anonymous November 7, 2020