Sub-bot 

An AI bot that subscribes to a social media channel when that social media channel is desperate for subscribers or is greedy for more subscribers.

Was that a sub-bot that just subscribed to you?

Sub-bot by Nostalgic 4 Disaster August 9, 2019

sub-defective

A person deemed so uncool and lame that they are below the loser level.

Joan: I'm already a sub-defective. Do you want me to become a toad next?

sub-defective by OMFGitzREGINA September 30, 2008

sub zero 

shit son, Sub-Zero is tha baddest mothafucka in mortal combat . Hes a NINJA that can freeze ppl and rip there heads off! How bad ass is that! His rival is Scorpion a dope ninja thats dead but allways seems to come back. all in all sub zero can kick anybodys ass in Mortal combat

FATALITY........... AAAHHHHH I JUST OPENED A CAN O' WOOP ASS ALL OVA RADIN WIT SUB ZERO. SHIT! U GOT OWNED! he just tore off ur head! u suck at this game!!

sub zero by Conrad F. September 17, 2006

Sub-Human 

A Sub-Human is someone who unironically uses “no❤️“

Person:Valid Arguement™️

Brain-dead Sub-Human: no❤️

Sub-Human by Coomaloomadooma September 20, 2020

sub-machine gun 

A class of firearms generally defined as being relatively compact with selective fire ability to switch from semi to full automatic. Usually fires standard handgun cartridges, though several exceptions exist (e.g. FN P90, H&K MP7) The sub-machine gun is most commonly used by special police/SWAT forces, paramilitary organizations, special op forces, and non-combatant military personel as a Personal Defense Weapon.

See also; SMG

sub-machine gun by Anonymous August 5, 2003

sub-negro temperatures 

a temperature or climate that is not conducive or favorable to negro and/or halfrican people. The actual temperature threshold is unknown, although it is commonly believed to be somewhere around 45 degrees fahrenheit (or below).

halfrican/negro: "Dang yo, it feels like sub-negro temperatures out here - I shoulda brought my coat!"

halfrican/negro's friend: "Dude, it's only like 40 degrees out here."

halfrican/negro: "Well, where I'm from we ain't used to no 40 degree weather!"

sub-negro temperatures by haileywood January 5, 2010

Sub-human 

Someone who has an attractiveness rating of less than 5/10.
Sometimes the term subanimal is used for those below 3/10.

Man look at this guy's recessed chin, what a sub-human!

Sub-human by Maryoussef August 12, 2022