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16.
2-5
Similiar to 5-0, but they are security guards, rent-a-cops, etc.
Damn 2-5 doesn't even carry a gun.
by Megloyvan March 10, 2005
 
1.
2.5
a measurement, usually in inches or a standard smaller (such as centimeter or nanometer), in reference to the size of a male schlong
Yo, dude did you see Trick's 2.5? Mang that thing is fudgin small beast.
by louisville slugger March 31, 2003
 
2.
25
Something funnier than 24.
"Hey, Patrick, I know something funnier than 24!"
"Let me hear it."
"25!!!!!!"
BAHAHAHA
by [.meghan.] May 14, 2010
 
3.
25
The age at which one can finally rent a car in the United States without being charged enormous amounts of money and without having to sign thousands of papers for that matter.

So, a half-blind 70-year-old just got his license, rents a car a kills 5 people is more acceptable than a 24-year-old who has been driving for up to 10 years without an accident.
"How was your trip to New York?"

- "Fuck that! I got stabbed and mugged in the subway because I woulda had to pay $100 more per day for renting a car cuz im not 25 yet!"
by DZ21 August 26, 2007
 
4.
25
Lysergic Acid Diethylamide-25. LSD, acid
Do you know where I can score a few hits of25?
by England phi beta gamma April 09, 2008
 
5.
2-5
2-5 is a section of Landover, Maryland in Prince George's County. The area is centered on Dodge Park road off of Landover Road. The area gets its name from the 25 Hour store located on Dodge Park Rd. near Kings Square Apartments.
"Oh you live in Landova?"

"Yeah son, Kings Square, 2-5 all day!"
by Only1k2 March 23, 2008
 
6.
2.5
private security guard, rent-a-cop; half of a 5-0 (see definition)
You cant arrest me. You aint the real police. You just a 2.5 !!
by Anonymous December 23, 2002
 
7.
25
Is a start to finish blow job usually averaging about 25 minutes!
The reference 25 is derived from the key pad of a phone. 2 representing B and 5 representing J. 25 = BJ
My girl finally gave me a 25 last night!!!! SOOOOO bomb
by The Lamontster March 11, 2010