FOS

Definition

Someone who thinks you're FOS thinks you're "full of s***." This acronym is used to call out people who are lying or ignorant.

Origin

slang.net

Related Terms

Beginner

np4np

naked pic for naked pic

📱 Gen-Z / Internet Slang

Beginner

aybabtu

all your base are belong to us

📱 Gen-Z / Internet Slang

Intermediate

badicle

A mashup of 'bad' (90s slang for good) and 'radical' meaning genuinely awesome. The linguistic equivalent of double-dipping your compliments in the goodness pot.

📱 Gen-Z / Internet Slang

Intermediate

Getting Neck

Street slang for oral sex that emphasizes the anatomical location doing the heavy lifting. Popular in hip-hop and probably used by people much cooler than you.

📱 Gen-Z / Internet Slang

Beginner