arm breaker 

a very long masturbation session, where it feels almost like your arm is ready to break.

john: i had a wank last night and it was a propper arm breaker!

jack: fuck me mate you need a bird!

arm breaker by buzz December 22, 2003

Arm Breaker 

Adj. People who reach so far, they metaphorically break their arm

Person 1: Saying 3 is your unlucky number is offensive to triplets!
Person 2: That’s such a reach, in no way was I trying to offend triplets arm breaker .

Arm Breaker by crazygeese3412 June 5, 2021

arm breaker 

a huge line of cocaine done by peer pressure; "twisting someone's arm" until it breaks.

Let's line up some fat arm breakers!

arm breaker by joe c. blow September 13, 2006

Armbreaker 

In reference to a particularly enthusiatic session of masturbation

Sorry geoff, can't play cricket at the moment - still recovering from an armbreaker I had this morning.

Armbreaker by Davidoff Eglinksi March 23, 2009