A term used to refer to something that's super epic.
Person: Did you see that new movie last night?

Person 2: Yeah, that was super epico boulder!
by BirbLover225 June 29, 2021
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The burning sensation that results from using bengay and/or icyhot to rub one out.
Dude, I was scorching the boulder last night with my icyhot and I thought my cock was going to fall off!
by brojers April 14, 2011
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1) A hard, rocky turd, usually spherical but can be patty-shaped. Just one, no more no less, in the bowl, as if it cracked off a canyon wall.

2) Any kind of stone shaped shit that may or may not tear one's anus on the way out.

3) What almost squished Indiana Jones in his first movie before he deftly dodged it to safety.

4) What can sometimes dangerously develop in one's lowers after eating two whole, nutritious loaves of white Wonderbread simultaneously without drinking a glass of water.
Dude, that butthole boulder you just launched rolled like a stone down the bowl like some underwater pinball machine. See if you can fish it out. We need a new doorstop.
by Wyatt Junker July 10, 2011
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If you have seen Ferris Beulers Day Off, the noise cameron makes with his mouth at the stock exchange building.
To irritate my teacher, I was dropping boulders all period in class
by Papawood December 10, 2003
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When a person leaves a social gathering without informing any other person at the gathering. Mysteriously disappears.
I totally boulder dipped last night. Got wasted and couldn't even say goodbye to anyone.
by Adoum January 10, 2009
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The act of picking ones nose and rolling it with ones fingers.
Hey Bro, did you see Bill boulder rolling?

Yes, how sick.
by smc1031 February 15, 2012
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