Hobo's Hand Grenade 

The action in which someone shit's in a crisp packet and throws it at their enemies. Preferably done by hobo's.

"Duck and cover! Eddie nit just shit in a crisp packet. There's a hobo's hand grenade incoming!"

Hobo's Hand Grenade by Tard Features October 12, 2011

dutch hand grenade 

In a similar mould to the dutch oven, but the air biscuit is caught in the hand, which is then used to transport the pungent aroma as close as possible to the victim's nostrils before it is opened.

Also known as cupping.

dutch hand grenade by TLO Smudge May 11, 2004

helsinki hand grenade

when someone is fingering someone elses ass hole and inserts their entire fist and then spreads it out, causing the other person to feel like something exploded inside them like a hand grenade.

That girl made me mad last night so i gave her the helsinki hand grenade.

helsinki hand grenade by Dale P. Johnson March 23, 2008

dive on the hand grenade 

To seduce an ugly girl so that your buddy can score with her attractive friend. This expression comes from the act of war-time bravery where a soldier would sacrifice himself to save his buddies. If you're out on the prowl with a mate and he is making progress with a fox, it is his friend's duty to chat up and seduce the pretty girl's ugly friend so that your buddy is free to leave with the hotty.

Dude, tonight it's your turn to dive on the hand grenade.

dive on the hand grenade by Bradboy January 10, 2007

Unholy Hand Grenade 

The act of flatulating in small inanimate object (usually a pillow or stuffed animal) for the purpose of delivering its putrid payload to the olfactory sensors of an unsuspecting bystander.

While Cliff was passed out on the sofa I lobbed an unholy hand grenade at his face. Hilarity ensued.

Unholy Hand Grenade by JoNeBoY August 14, 2010

swedish hand grenade 

Ejaculating into a condom then tying off the end after removing said semen filled condom from the penis. The tied off condom then becomes a projectile used in urban warfare, usually thrown overhand at approaching enemy forces.

I was pounding out this chick but then her boyfriend showed up. I had to use a "Swedish Hand Grenade" just to escape.

swedish hand grenade by DON J0HNS0N July 27, 2014

Jamaican Hand Grenade

Nickname give to Red Stripe (TM) Beer, refering to the bottle's somewhat unique barrel shape with a short neck. Also used in reference to potencey of the beer.

"Hey man, toss me one of them jamaican hand grenades" ; "Those jamaican hand grenades kicked my ass last night" ; "One of those jamaican hand grenades went off in my head"

Jamaican Hand Grenade by Sp@rky June 5, 2009