Urban Dictionary: rubidium

1.	rubidium
	A Random Boner, or an unexpected erection. Called a rubidium due to the element's symbol being Rb I was sitting in maths when all of a sudden, i got a Rubidium! buy rubidium mugs & shirts boner erection annoying sex hard hard one by Face-Munch3r Sep 1, 2011 add a video

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