45 

A beer called Colt 45 & can be ordered at many convience stores

Hey Jamall grab me a 6 of 45!

45 by Damnit Janit June 17, 2007

45 

To double cross.

She was 45ed by her own brother and lost her clearance and her house.

45 by LanceHN August 12, 2019

45 

A phonograph record played at 45 RPM. It was about 8 inches across and had a very large central hole. It played a single song.

Peggy Sue has a whole box of Elvis 45s.

45 by Cap'n Bullmoose April 23, 2005

45 

A hybrid left hook/uppercut, coined by Oscar De La Hoya due to the angle at which the punch is delivered.

“I just reached for my '45' and just like the Carter fight," De La Hoya delivered a “skin-shattering cut, this time over the left eye of my opponent."

45 by ChippL December 28, 2008

45 

A 45 pound (20kg) standard weight plate used on Olympic barbells. Often referred to simply as "1 plate" or "a plate".

I hit a new personal best on deadlift yesterday repping three 45's. That's 160kg, not counting the bar!

45 by knikknax October 23, 2015

45 

1. The number that is after 44 and before 46

2. A Colt 1911 .45ACP. Despite only holding 7 or 8 rds, the 45 is like twice as powerful as a 9mm, even if the bullet is slower. Usually a term only given to a colt because most other .45ACP guns look like 9mms at a glance

Dude: Im gonna put a 45 in that asshole if he dont watch

45 by carlbittner March 26, 2009

45 

A group of dumb ass niggas that act like the shit but really are not.

HAHAHA... hear comes those pussy ass 45 members

45 by bubblecoochie June 20, 2019