A distance correlated with the area of a city in which a person would want to walk during the winter or in the cold.

In northern cities, a summer radius is usually much larger than a winter radius, due to the warmer weather and better walking conditions.
Do you want to go to the wine bar? -No, let's go to the Irish pub down the street - the wine bar is definitely outside our winter radius.
by mugs021 January 2, 2011
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The distance that toilet water travels when a piece of crap falls from your butt hole and splashes into the toilet.
If a Splash Radius is Danger Close, it usually means that the water is splashing you on your butt cheeks.
by jokjok2796 April 25, 2010
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Is the level of poo all on the back and inside of the toilet after an explosive bowel movement
Dude! I ate 10 white castle's last night and dropped a huge one, the blast radius was a good 12 inches
by Ogb18 September 3, 2008
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The distance on either side of your body that is needed in order for you to applaud.
Jeff, I am unable to applaud this spokesman because you're standing within my clapping radius!
by Kewl Kev October 22, 2009
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The distance in which one is willing to travel for really amazing sex. This can be in part determined by the person's hotness and just how amazing the sex is.
The "sex radius" for person X is definitely at least 6 hours. He's that good.
by randomthinker77 September 13, 2012
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The area within arm's length of a zombie.
"Steve made a critical error as he stepped forward to strike the first zombie. By doing so, he entered the second zombie's snack radius and quickly became a meatsnack."
by qlajlu June 10, 2006
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Used commonly in MMORPG games such as World of Warcraft, Everquest, etc. to describe the area around a single player, a group or a raid within which a mob will aggro and attack the player or players. The aggro radius varies depending on the levels of both the player and the mob. The higher the player's level, the smaller the aggro radius of the mob, meaning the mob will be much less likely to attack the player.

As a player, your aggro radius is something you're constantly aware of when moving through a zone or area full of mobs, especially those zones of the same or a much higher level than yourself. You have to be watch your aggro radius during a raid, for the benefit of the whole raid. Woe betide anyone pulling additional mobs during a raid because they weren't watching their aggro radius. Your Raid Leader will hate you.

The term aggro radius can also be used outside of the gamer world - irl - to describe your general personal space and the annoying tendency of some people to wander into it and piss you off, which can occasionally result in a similar outcome of blood, guts and mayhem.
Crap, this zone is, like, 20 levels higher than me... I'm watching my aggro radius like a hawk. I'm gonna get ganked any minute and wind up taking a dirt nap.

Raid Leader: "Watch your aggro radius, people."

Duuuuuuuudeeeeee, you moved us right near those elites and stuck them in our aggro radius...now we've got a huge corpse run arrrgghhhh!!!!111!!!!!!!!!.

This eejit is really getting in my aggro radius. It's gonna get messy if they don't back off soon.
by Obscurething January 24, 2011
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