the smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule
by Adrianna Lazaro February 25, 2015

by msully4321 January 1, 2015

by redydfeyg November 24, 2014

the size of your penis
by bigshlongkevin October 7, 2021

by kevin dampman January 19, 2011

Young Girl 1: Whoa! Look at that guy over there. He's hot!
Young Girl 2: Dude, he's like 37.
Young Girl 1: Sorry, I have ATOMS.
Young Girl 2: Dude, he's like 37.
Young Girl 1: Sorry, I have ATOMS.
by Laura42395 January 19, 2011

Coolest dude ever. Super sexy and smart as shit. Atom is super unique just like his name. Only bad asses are named Atom.
by Ktmarie3 December 23, 2016
