Grenade Swarm (Verb) : To deliberately aim grenades at a single point from multiple players, so as to remove defenses from a long way away. Considered very bad manners, despite being a clever tactic.

It is often compared to camping and zerging, as both are considered weak strategies, while often being part of the game's design...
Base Defender: Haha, I am sniping you and you cannot... <BANG!> WTF?!?!? I'm dead! How'd I?!? You f*(!ing NOOBS, YOU GRENADE SWARMED ME!

Attacking Team: Oh, suck it up, you big camper!
by Jamie and Tarne Durbin May 26, 2008
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Swarm-like is a genre in video games.
It is most often an arcade like game in which players have to narrowly avoid enemy attacks with only a single health point — much like in a Bullet Hell.
"I just played Devil Daggers and Swarmlake and they are pretty genre defining for Swarm-like games."
"I am pretty sure Super Hot has some Swarm-like elements in their endless mode."
by scissormarks December 12, 2019
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Slang term for groups of the Palestinians who group around a car that the Israelis have destroyed with a rocket attack.
'After Abu Abbas' car was destroyed by a missile attack there was a car swarm'.
by Bill April 18, 2004
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A large afterhours,around 3 am, gathering of African Americans usually located in a gas station parking lot or other open area.
After the bar closed, Tyrone and Leroy decided to head over to the Nigger Swarm at the old Pick'n Save parking lot to continue the party.
by John Lomb August 06, 2007
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Alien Swarm is a co-op squad-based shooter UT3 mod. Set in the distant future, the players take the role of a Commander in the Interstellar Armed Forces. They must guide their squad of marines through Swarm infested colonies, overrun bases and outposts, to achieve a variety of objectives.

Featuring Assault Rifles, Heat Tracking Guns, Sentry Guns, Flamethrowers and more. Alien Swarm can be played single-player or online co-operative multiplayer, with a strong emphasis on teamwork between the marines in both forms of play.

Alien Swarm is now on Steam, as a Source Mod.
guy: wanna play alien swarm??
guy2: the Steam version or UT version?
guy: what Steam version??
guy2: it just came out on Steam as a Source Mod
guy: well, like all urban dictionary definitions, i have to say something perverted now so-
guy2: ASS CLOWN!
guy: hey! i was gonna say that!
guy2: TITS!
by Hoffer July 17, 2010
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The usual response to any minor factual error in a science-fiction or fantasy related article on the internet.

A nerd swarm is characterised by multiple, repeated corrections to the error along with reactions blown out of all proportion. See also nerd rage.
Article headline: "Why Tom Baker, the sixth Doctor, had such curly hair."

Comment: Tom Baker was the FOURTH DOCTOR!

Comment: fourth Doctor Who, dumbass.

Comment: fourth

Comment: Colin Baker was the sixth Doctor

Comment: He was fourth!

Comment: which curly haired Doctor do you mean, fourth or sixth?

Comment: You stupid bastard! Fourth!!!

Comment: fourth!

Comment: By the blood of Rassilon, I swear that I will murder your entire family for this! Tom Baker was the fourth Doctor!

Comment: You made a mistake. Tom Baker was the Fourth Doctor.

Comment: Fourth Doctor

Comment: Failure! Baker was, like, the fourth.

Comment: Colin or Tom, you piece of s**t?

Comment: Fourth.

Comment: Quick! Edit your article! There's a nerd swarm forming! For the love of God, edit it now!!!
by John Superman December 10, 2013
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Person 1: hey what cha listening to
Person 2:oh just signs of the swarm on their song "cesspool of ignorance"
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