Noun
m80 (plural m80s or m80's)
(text messaging) Informal form of matey.
During testing, the M855A1 performed better than M80 7.62×51mm NATO ball ammunition against certain types of targets (particularly hardened steel), blurring the performance differences that previously separated the two cartridges. Source: Internet
Based on this system, German Rolf Geese in the M60 division and American Robert Hewitt in the M80 divisions have set their respective world records over 8,000 points. Source: Internet
Drivers planning to use the M80 this weekend should note that a stretch of the route will be closed overnight for maintenance works. Source: Internet