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Smithsonian 

A bar or pub where Saber Tooth's and other fossils are abundant. Cougars may also be found there on occasion.
(Speaking of Union Street Pubic House, in Alexandria, VA) Fossils everywhere - looks like another night at the museum here in the Smithsonian.
Smithsonian by Hex Cyclos June 1, 2011

Smithsonian 

A language spoken by band directors that consists mostly of insults but when a compliment given it means more than one usually would in English
God, I wish Mr.Jones would stop speaking Smithsonian.

Smithsonian 

A series of museums based in washington dc. The collection includes cursed stuff such as a news stopwatch. If in an exhibition you spot some Jim Henson made puppet run away it might come alive at night!
Someone came to the smithsonian at night and Kermit the Frog came out of the glass and came alive.
Smithsonian by JadenTheMoose May 24, 2022

Smithsonian fender bender 

A Smithsonian fender bender is when you’re having rough anal sex with an elderly woman and stick your whole fist in her pussy hole and scream, “Dumb Dumb gimme Gum Gum”.
Damn your grandma was not ready for my smithsonian fender bender.

Smithsonian Jackhammer 

Fingerblasting the pussy till she is seeing stars
Did you see Kenny drop the Smithsonian Jackhammer on Brittany last night? She was moaning like a wolf

Smithsonian Steamboat 

Smithsonian Steamboat is a term used when an older lady smokes a cigar or vape with her vaginal canal then another person pulls the smoke out of her vagina with there mouths and blows it back into the older lady's mouth.
Crum: WHO WANTS A SMITHSONIAN STEAMBOAT

*The people at the retirment home look at him confused*

Crum then proceeds to give everyone a Smithsonian Steamboat

Everyone wins!
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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