Concussion Grenade 

1.) An anti-personnel device that is designed to damage its target with explosive power alone.

2.) A type of fart where hopefully the Boom warns you before the Shock wave hits, usually resulting in holding one's breath and calling an O-ring repair doctor.

1.) "The perpetrator was neutralized by a concussion grenade."

2.) "Oops! Did u just hear that concussion grenade, quick plug your nose!!"

Concussion Grenade by Firehawk21_2001 March 17, 2014

Kappy Grenade 

To throw a grenade badly in Counter Strike and end up blinding or killing your own team mates instead of you enemys.

Fuck , who just threw a kappy grenade?

Kappy Grenade by Mabr September 27, 2014

crimson grenade 

When a woman takes out her tampon and throws it to her victim.

I was just hit with a crimson grenade, I must go.

crimson grenade by supertavs July 28, 2015

plasma grenade 

a grenade that sticks to any surface and usually explodes with plasma energy instead of fragmentation from a regular grenade hence its name. No this type of thrown weapon is not only in Halo nor was it "invented" from Halo. Many sci-fi shooters have this type of grenade.
p.s. can be referred to as plas for short.

Joe: Hey dude, you choosing frag or plas?
Bill: Eh, I'm a have to go with the plasma grenade.
Joe: Why? Because it started in Halo? I know how much you like that game.
Bill: No, I prefer to use it because I'm more accurate at getting my targets with it than a bouncing fragment grenade. Also it did not originate in Halo, it is has been around also in science fiction movies.
Joe: Okay, I was wrong let's just play the game.
Bill: Cool then, lets.

plasma grenade by anonimbus August 26, 2012

Herpe grenade 

an explosive device used to spread the herpes virus throughout a large radius. It sucks

Ex1 O shit, that herpe grenade nearly hit me.

Ex2 That herpe grenade really fucked me up good. My penis has been burning for months

Herpe grenade by Bawb March 28, 2005

BURN GRENADE 

Shortly after verbally "burning" someone this word along with many others is used

Hey sam your gay...kevin lets throw our burn grenades......BURN

BURN GRENADE by thecrazyasian February 10, 2007

Tossing stun grenade

When someone shows superior level of greatness/finesse and made others stunned with amazement.

Bob was tossing stun grenade when he walked across the room with his sexy as hell trophy wife.

Tossing stun grenade by jjoozz August 11, 2009