What is 3.5?
1/8 of an ounce of Marijuana.
Moron: How many grams are in 1/8 of pot?
Normal Person: 3.5 you fucking idiot.
The base between 3rd and 4th (when defined as hand jobs and then sex) which describes oral sex.
We didn't wanna have sex yet, but we went to 3.5 last night.
A female who has reached the status to make say, "gimme 3 and half minutes,maybe 4 she'll be wanting to marry a nigga."
fine ass girl walks in a room....you yell THREE POINT FIVE....and someone responds, round that shit up.