8fi 

Pronounced "eighfy", essentially refers to the measurement 1/8, and is used when procuring or selling marijuana.

Me: Yo you good?
Dealer: Yeah how much you need?
Me: An eighth.
Dealer: I gotchu with that 8fi.

8fi by mothafucka ninja nigga July 7, 2016

8fifty8 

It is a surf company based on two area codes where they originated. The 808 of Hawaii and the 858 of of San Diego. These two surf cultures and lifestyles are what 8fifty8 represents.

I just bought my new surfboard from the surf company 8fifty8.

8fifty8 by 8fifty8 October 7, 2010

8fi9 

8fi9 literally means "the end." Used in the Dominican Republic (2015-2019) to describe something good.

Those shoes are 8fi9

8fi9 by TheRealDictionaryRD December 28, 2023