5218008 

If you type it in a calculator and flip it over it says: boobies.

5218008

5218008 by Death_Rider October 23, 2014

5318008 

When typed into a calculator and flipped upside down, the display reads "BOOBIES".

5318008 by Soiled Undergarment September 29, 2003

5318008 

5318008 when typed on a calculator and held upside down spells BOOBIES. also a possible phone number in different area codes because it has 7 numbers.

1 dude look what i wrote
2 dude that just says 5,3,1,8,0,0,8
1 no look *flips calculator upside down*
2 woah it says BOOBIES!!! holy shit!! i just thought it said 5318008.

5318008 by my name is a secret shhhhh March 8, 2011

5318008 

A term in which if you type it into a calculator and rotate the calculator 180° it reads BOOBIES.

in math class

Jimmy: *SCHNOORT* HEY MRS. DINGLEBERRY! IF I TYPE IN 5318008 INTO THE CALCULATOR THEN FLIP IT UPSIDE DOWN IT SAYS BOOBIES!

Mrs. Dingleberry: fuckmylife

5318008 by galaxiya June 24, 2018

5318008 

Upside down in a caculator and it'll mean "Boobies"

Friend 1: Hey pal, look

Friend 2: What

Friend 1: shows 5318008

Friend 2: Oh wow, so funny!!

5318008 by KillYourselfKYS June 6, 2023

5318008918 

when typed on a 10 digit calculator it reads BIGBOOBIES

Mark: look what i wrote
James: that just says 5,3,1,8,0,0,8,9,1,8
Mark: no look *flips calculator upside down*
James: woah it says BIGBOOBIES!!! holy shit!! i just thought it said 5318008918.

5318008918 by YourLocalAsian December 22, 2021