Atom 

the smallest particle of matter, contains protons, neutrons, and electrons. The protons and neutrons are contained in the nucleus while the electrons revolve around the nucleus at immense speeds

the only real definition on this page

Atom by CorrodedBeing December 18, 2004

atom 

the smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule

Atoms cannot be seen by the naked eye.

atom by Adrianna Lazaro February 25, 2015

atom 

the basic unit of matter

atoms make up everything and everyone

atom by redydfeyg November 24, 2014

atom 

the size of your penis

what is an atom
oh it is the size of my penis
or it is the size of your friend ielkos penis

atom by bigshlongkevin October 7, 2021

Atom 

Coolest dude ever. Super sexy and smart as shit. Atom is super unique just like his name. Only bad asses are named Atom.

Atom is such a cool dude.

Atom by Ktmarie3 December 23, 2016

Atom 

A homie's way to say ifuckingloveyousofuckingmuchicantimaginemylifewithouyouyourewhatiwantedinmylifeyouyouyou

-I just made a huge one-word-I-love-you word
- what??
-ifuckingloveyousofuckingmuchicantimaginemylifewithouyouyourewhatiwantedinmylifeyouyouyou
- just say Atom man
- okan

Atom by AlexanderTheG February 17, 2021

ATOM 

Ass to OTHER mouth. Occurs during a threesome with two girls and one guy. Fuck her in the ass and then blow your load in her friend's mouth.

Porn or Hardcore Sex, Man pulls penis out depths of a woman's ass and immediately puts in ANOTHER woman's mouth. A degrading but satisfying act.

Bro, did you go ATOM last night?

ATOM by Jackie Paper June 17, 2007