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8.
To Radar is to check out the scene or what's happening.
A Radar is a nosy person whose always checking up on who is where and when - A nosy bastard
"Let's go to the club for a radar"

or

"Stop checking up on him, don't be such a Radar!"
by Grumple June 18, 2009
 
9.
a cigarette (part of a new language called "Cataline")
hey foo can i get that shoe (refer to shoe) to spark my radar
by dudesafuckinpussy December 13, 2010
 
10.
Device used by the police to catch speeding motorists (and raise revenue). Usually in the shape of a hand held gun.
"I heard on the radio that there is a radar up ahead."
by Zoe February 21, 2005
 
11.
3rd party Hacking Program used by Losers in MMORPG's to detect and locate enemies from afar.
Losers Like Zeik and Vanesse used RADAR and got perma-banned from "Dark Age of Camelot" for it.
by Mythic Anti-radar patrol April 05, 2005
 
12.
A google eyed geek wearing glasses like the nerd that played the camp clerk in the TV show M.A.S.H.
Person 1: Who's that over there chatting up your girl?
Person 2: Some fucking Radar she met in class. She's doing him a favour by being his friend.
by Saddened by Reality May 17, 2008
 
13.
As with the Previous use of radar to spot a hottie, "A" radar is any hottie with Breasts large enough to be spotted on a radar device.
Bruce: "oh my, got a major radar at 6 o'clock"
James: "daaaamn, them some dirty pillows for the likes of Paul Bunyan"
by Chris Adams August 07, 2006
 
14.
Acronym for Radio Angle Detection And Ranging. The earliest acronym included Angle, but was soon dropped.
See that RADAR over there at the airport?
by Jason November 24, 2003