Define Sub Meaning

when you post something on social media without tagging the person that it's about.
taken from twitter (subtweet) and spread to other social media platforms.

short for "suboxone" or "subutex" or buprenorphine. the only other drug, besides methadone, that is used to treat opiod dependance. It is legally presecribed in a doctor's office but has been found to be illegally sold and used in recent years.

Common reference to a large sandwich often used by people in the North Eastern united states. (Submarine Sandwich)

short for subwoofer, a speaker that drmaticaly increases bass output

short for substitute teacher

v. to work as a substitute teacher

it means subscribe to someone else's youtube account. You will then receive a notification every time they publish a new vid. People try to get more subscribers to their accounts.

Someone you throw paper airplanes at, perform as a Tourette's child for, compliment on her dress and say you have one just like it (if you are male), and generally confuse and irritate. The ultimate goal is to either make the substitute break down laughing or reveal his/her shocking brain-dead-ness by convincing him/her that you really do talk like that.

supremely ugly being

sub= substandard, sub-par. Anything that is generally sketchy or shady.