a term commonly used to abbreviate the sexual toy, "fleshlight" used as a masturbation aid. Often two people or a small group will use the term to make others go crazy trying to find out what FL stands for, but upon researching FL all the find is statistics on the state of Florida.
ynohtna-"yo tap you got that ""FL""?"
Tap-"uh? ya... ""FL!""."
Group-"What are they talking about?"
An abbreviation of 'fake life' most commonly used by people who role-play on social networking sites such as Twitter or Facebook. The opposite of 'RL' and used when differentiating between reality and role-play.