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Like its predecessors agar.io and slither.io, diep.io is a minimalist 2-D MMO game where you level up by first consuming things scattered around the map, then other players whom you think you can take on. Except this time, instead of controlling cells or snakes, you control tank (or more precisely, circles with shooty squares attached to them). There is a whole tree of tank types you can level up to have, as well as specific aspects of your tank (bullet penetration, speed, health regen, etc.) you can level up.

Like its predecessors, Diep.io addictive as fuck. It has 4 game modes, 3 more than either other game.
Student: "Dude, I just got a score of 250,000 while playing the Booster class in Diep.io"
Teacher: "This is why you failed the last project, Atkins."
diep.io by SMLJRON July 11, 2016
a game played by an individual by the name of "Diepmaster"
Guy 1: Yo did you see him playing diep.io?
Guy 2: Yeah he was right after he ate his burnt quesadillas.
diep.io by seeligfamm December 4, 2017
Diep.io is a game about tanks and evolution,Team games to domination
Guy 1:Dude i thought maybe we could play some Diep.io today.
Guy 2:Sure Man
DIEP.IO by Om3gaWallflez May 31, 2018
A webbrowser pc / mobile app 2D shooter game
i got a hunt in diep.io
how much score did he have?
1.7m
diep.io by EclipSyS April 30, 2025

One shot in diep.io 

Killing someone with one shot when they are at full health
The one shot in diep.io was OP
More from Urban Dictionary

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
Word of the Day on November 2, 2026

countrypolitan 

Term used to describe someone who is a mix of both rural (country) and urban (metropolitan) lifestyles/upbringings. He/she is typically equally comfortable in both settings and is able to seamlessly slip back and forth between the two, appreciating the characteristics of each.
That ol' gal of mine drives the 12 lane freeway during the week and a John Deere on the weekends. She likes opra and the Grand Ol' Opry. I love them countrypolitan women.
countrypolitan by MOChick November 7, 2006
Word of the Day on November 1, 2026

Witch Bath 

A bath consisting of a variety of slats, oils, soaps or any other added ingredients such as fruits, milks, herbs or any other spices for health or beautifying benifits.
She brought home alot of stuff and took it to the bathroom. She must be taking a witch bath.
Witch Bath by carnieboy30 October 26, 2020
Word of the Day on October 31, 2026

kinktober 

An excuse for people to write porn with different types of kinks throughout the month of October.

Smut Fanfiction
That chick doesn't write often but when she does, its for Kinktober.
kinktober by Kinkiest July 12, 2018
Word of the Day on October 30, 2026

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
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